BIOSx Elite Performance Compression Socks - Neon Pink

Performance

BIOSx Elite Performance Compression Socks - Neon Pink

Name: BIOSx Elite Performance Compression Socks - Neon Pink
Rating: 4.80 (30 reviews)

$59.95

It's time to unlock your true potential. Elite Performance Compression Socks combats fatigue, stops cramps, and delivers power and control when it counts most.

Size: Large

Sizing Wear & Care

Full Length No Show, Crew & Boot Length

For the perfect fit, take a quick measurement of the widest part of your calf. Our compression socks are expertly designed to provide the ideal level of compression for their purpose. If your calf measurement is between sizes, go with how you prefer your compression socks to feel. If you prefer a firmer compression, go with the smaller size.

BIOSx Full Length Compression Sock Size Guide

Shoe Size	Small	Medium	Medium - Large Calf	Large	Large - Large Calf	X-Large
EU	35 - 37.5	38 - 41.5	38 - 41.5	42 - 46	42 - 46	46.5 - 48.5
AU - Mens	3.5 - 5.5	6 - 8	6 - 8	9 - 12	9 - 12	12.5 - 14
AU - Womens	5 - 7	7.5 - 9.5	7.5 - 9.5	10 - 13	10 - 13	14 - 15.5
CALF SIZE
CM	30 - 37	32 - 37	38 - 43	36 - 40	41 - 46	43 - 50
Inch	11.75 - 14.5	12.5 - 14.5	15 - 17	14 - 15.75	16 - 18	17 - 19.75

Hover or tap a size to follow it down the chart.

How to Measure Your Calf

Measure in the morningSwelling is usually at its lowest first thing, so it's when you'll get your truest reading.
Find the widest pointWrap a soft tape measure around the fullest part of your calf, flat against your skin, snug but not squeezing.
Match your sizeFind your number in the calf size rows, then use your shoe size as a second opinion. If they don't quite agree, your calf gets the final say.

Why mornings?

As the day goes on, gravity gently draws fluid down into your lower legs, so your calves can measure a little larger by the evening. That daily ebb and flow is exactly what graduated compression is designed to support. Measure before it begins and your socks will fit the way they're meant to from the very first wear.

No tape measure handy? A piece of string and a ruler work just as well.

Why We Start With Your Calf

We always recommend going by your calf measurement rather than your shoe size, because it's the number that decides how well the compression actually works for you. Every pair we make is unisex, so this chart works for everyone. Sitting between sizes, or just want a little reassurance? Here's what we're asked most often.

Between Sizes?

It really comes down to how you like them to feel. The smaller size gives you a firmer, more supportive hold, while the larger one feels a little lighter. If you're right at the top of a range, that size is usually still your best match.

Calf and Shoe Size Don't Agree?

It happens more often than you'd think, and it's completely normal. Go with your calf. That's where the compression does its most important work, so it's the fit worth getting right.

Wide or Narrow Feet?

Nothing to worry about here. The foot is knitted to stretch and move with you, so it settles comfortably into your shape. It's one more reason we let your calf lead the way.

Top Band Feeling Tight?

Have a quick look at where it's sitting. The band is designed to rest about two finger widths below the crease behind your knee. Pulled up higher, folded over or bunched along your leg, the pressure gathers in one spot and can feel much tighter than it really is.

First Time Wearing Compression?

Welcome aboard. You'll feel them firmest around the ankle, easing off gradually towards the knee, which is exactly how graduated compression should feel. Snug is a good sign. If you ever notice pain, numbness or tingling, take them off and drop us a line.

Pregnancy?

Congratulations! Measure your calves as they are now, since things can change from week to week. We'd also suggest a quick chat with your GP, midwife or obstetrician to make sure Class 1 compression is right for you.

Our shorter styles finish at or below the calf, so there's no need to reach for the tape measure. Your everyday shoe size is all it takes to find your fit.

BIOSx No Show, Crew & Boot Length Compression Sock Size Guide

Shoe Size	Small	Medium	Large	X-Large
EU	35 - 37.5	38 - 41.5	42 - 46	46.5 - 48.5
AU - Mens	3.5 - 5.5	6 - 8	9 - 12	12.5 - 14
AU - Womens	5 - 7	7.5 - 9.5	10 - 13	14 - 15.5

Hover or tap a size to follow it down the chart.

Finding Your Fit

Every pair we make is unisex, so this chart works for everyone. A few things we're often asked:

Between Sizes?

If your shoe size sits right on the line, think about how you like them to feel. The smaller size gives a firmer, more supportive hold, while the larger one feels a little lighter.

Shoe Size Varies by Brand?

It happens to all of us. Go with the size you wear most often in your everyday trainers or work boots.

Wide or Narrow Feet?

Nothing to worry about here. The foot is knitted to stretch and move with you, so it settles comfortably into your shape.

First Time Wearing Compression?

Welcome aboard. A snug, supportive feel is exactly what you're after. If you ever notice pain, numbness or tingling, take them off and drop us a line.

Care & Maintenance Guide

A little care goes a long way. Look after your BIOSx socks and they'll keep looking after you, wash after wash.

Wash Gently

Hand washing after each wear is best. Prefer the machine? Pop them in a mesh bag on a gentle warm cycle, no hotter than 30°C, with similar colours.

Keep It Mild

A mild detergent is all they need. Leave out the fabric softener and never use bleach, as both break down the fibres that give your socks their hold.

Air Dry

Give them a gentle squeeze rather than a wring, then let them air dry. In a pinch, a tumble dry on low heat (below 30°C) will do.

Keep Them Out of the Sun

Never dry them in direct sunlight or on heaters and radiators. High heat is the quickest way to wear out the elastic fibres.

6Months

Even with the best care, compression naturally eases over time. We recommend refreshing your pairs every six months so you're always getting the support you came for.

Still Not Sure? We're Here to Help

Send your shoe size, and your calf measurement for full length styles, to support@biosx.com.au and one of our team will happily help you find your perfect fit.

Calves 30–37cm, shoe size Men 3.5–5.5 / Women 5–7.

Calves 32–37cm, shoe size Men 6–8 / Women 7.5–9.5.

Broader calves 38–43cm, shoe size Men 6–8 / Women 7.5–9.5. Designed for extra calf room.

Calves 36–40cm, shoe size Men 9–12 / Women 10–13.

Broader calves 41–46cm, shoe size Men 9–12 / Women 10–13. Added stretch for wider calves.

Calves 43–50cm, shoe size Men 12.5–14 / Women 14–15.5.

Colour: Neon Pink

Color: Neon Pink

Quantity:

In stock

Free Carbon Neutral Shipping

Spend +$75 AUD and your order ships for free.

Our 100 Day Money Back Guarantee

Try us risk free. You’ll never be out of pocket.

Shipping & Delivery

BIOSx estimated delivery times and shipping fees vary by destination. We aim to deliver your orders within 5 business days, with express shipping options, including next-day and two-day delivery, available in select regions.

You will receive an order confirmation email shortly after placing your order. Please double-check your shipping address to ensure it is accurate. Any additional shipping costs due to incorrect address details will be the customer's responsibility.

Your packages will be shipped via premium courier services. Once dispatched, you will receive an email with a tracking number to monitor your shipment’s progress.

Important Information

All BIOSx orders are shipped from Melbourne, Australia.
Customers within Australia will not be charged additional duties upon delivery.
International orders may be subject to local taxes, duties, or import fees. Please consult your local customs office for details.
BIOSx is not responsible for additional transactional fees, taxes, or customs charges that may apply.
Orders are dispatched on business days only (Monday to Friday). Orders placed over the weekend will be processed the next business day.
BIOSx reserves the right to amend shipping policies without prior notice.
For any inquiries regarding shipping, delivery, or tracking, please contact our customer service team at support@biosx.com.au.

Australia & New Zealand

Service
Cost
Metro
Non-metro

Australia Express
$12.95 AUD
1-2 Business Days
2-4 Business Days

Australia Standard
$7.95 AUD or
*free on orders over
$75 AUD
2-6 Business Days
Up to 7 Business Days

New Zealand Standard 
$14.95 AUD
*free on orders over
$75 NZD

4-10 Business Days
5-10 Business Days

New Zealand Express
$29.95 AUD
2-5 Business Days

3-5 Business Days

International

Please allow between 5 - 20 business days.

Service
Cost
Region

Asia
$19.95 AUD
Brunei, Cambodia, Hong Kong Sar, India, Indonesia, Japan, Laos, Malaysia, Myanmar, Philippines, Singapore, Taiwan, Thailand, United Arab Emirates, Vietnam.

ROW
$49.95 AUD
Rest of the World

BIOSx Elite Performance Compression Socks - Neon Pink

$59.95

Compression Class 1

Compression for power & precision

X-Wrap™ Stabiliser

Foot-locking support for unmatched stability.

Fresh-X™ Material

Wicks sweat fast. Dries 5x faster than cotton.

About the BIOSx Elite Performance Compression Socks - Neon Pink

Built to unlock your full potential. BIOSx Elite Performance Compression Socks boost muscle oxygenation, fight fatigue, and deliver locked-in support to reduce cramps and shin splints. Lightweight, breathable TENCEL™ fibres are ultra-soft and naturally sourced—keeping you cool, dry, and focused from the first rep to the final whistle.

Key Features

Intelligent Graduated Compression

Boosts circulation and oxygen delivery to muscles for more power, endurance and faster recovery.

TENCEL™ Advanced Fibre Technology

Silky soft, naturally breathable, and engineered to wick moisture fast. With Fresh-X™ fibres and built-in anti-bacterial protection, your feet stay cool, dry, and odour-free under pressure.

Cramp & Shin Splint Defence

Supports key muscle groups to reduce the risk of cramps, fatigue, and shin pain during intense activity.

Wrap-X™ Foot Stabiliser

Our proprietary tech locks in your foot for unmatched stability, agility, and control—reducing muscle fatigue and lowering strains and injury risk with every move.

Targeted Athlete Support

Strategic arch compression cradles the foot to reduce strain on the plantar fascia—perfect for athletes prone to foot pain or plantar fasciitis. A seamless, wide toe box allows natural toe splay, promoting proper foot alignment, stability, and powerful movement.

Lightweight Cushioning

Strategic padding absorbs impact while keeping the sock light and fast—perfect for explosive effort.

Compression Rating

Firm 20-25 mmHG

Compression Guide

Every pair of BIOSx Compression Socks undergoes rigorous quality checks to ensure a perfect fit and optimum performance. Our expert engineers meticulously inspect each product using top-of-the-line Swiss technology, the Salzmann MST MK V and CMD-100. For added assurance, we randomly inspect cartons before shipping, so you can trust that your socks deliver the support and comfort you deserve.

Who is this compression level for?

Perfect for athletes, runners, cyclists, fitness professionals, and anyone pushing their performance to the next level. Whether you're training, competing, or recovering, these socks deliver the support, stability, and muscle recovery you need to go further—day after day.

Target Use

This compression level is designed for active individuals and athletes who train hard, perform at their best, and want to bounce back stronger the next day. Whether you're training or competing, it helps boost circulation, reduce muscle fatigue, and support optimal performance—while also helping prevent strain, overuse injuries, and long-term burnout. Ideal for anyone who wants to move better, feel better, and stay in the game longer.

The Benefits of Compression

Improves overall energy levels.

Promotes faster muscle recovery.

Reduces chances of blood pooling and clotting.

Improves blood flow (venous return).

Prevents formation of varicose veins.

Reduces build up of lactic acid in muscles.

Reduces tired legs, cankles, and swollen feet.

Prevents injuries by reducing muscle oscillation.

Helps relieve foot, calf and ankle pain.

Train Harder. Perform Better. Recover Like a Pro.

BIOSx Compression Socks, The World’s Most Advanced Compression for better Circulation, Endurance, and Recovery.

40%

Better Blood Flow

Maximise Muscle Performance

Feel the difference from the first wear. BIOSx promotes blood flow and muscle oxygenation and prevents pooling, whether you’re at your desk or on your feet.

Proven in workplace clinical trials (Morris et al.)

90%

Less Risk of DVT

Fly Without Fear

Smart travellers wear BIOSx. Clinically shown to reduce the risk of blood clots during long-haul travel by 90%.

Cochrane Review, 2,800+ participants (Lassen et al.)

50%

Less Fatigue

Say Goodbye to Tired, Achy and Heavy Legs

Clinically proven to reduce lower limb fatigue and swelling by over 50%.

Verified in 12-hour standing trials (Rabe et al.)

62%

Reduction in Swelling

End the Pain of Varicose Veins

BIOSx Compression significantly reduce heaviness, aching, and leg swelling in those with venous issues.

Placebo-controlled study (Partsch et al.)

48hrs

Faster Recovery

Get Back in the Game Sooner

BIOSx speeds up recovery — cutting muscle soreness by 42% in 24 hours and up to 61% within 48 hours. Less pain, more gain.

Meta-analysis of 12 sports studies (Bieuzen et al.)

47%

Better Circulation

Feel lighter, stand longer, and move easier

BIOSx eases pregnancy-related swelling so you feel light, supported, and energised.

Observational study on third-trimester leg circulation (Blottner et al.)

Wearing & Caring

Care Instructions

Care & Maintenance Guide

Proper care ensures your BIOSx compression socks last longer and continue delivering maximum comfort and performance.

Washing Instructions:

For best results, hand wash after each use to maintain durability.
Prefer machine washing? Use a gentle warm cycle (max 30ºC) with similar colours.
Bonus points for placing them in a mesh laundry bag and selecting the hand-wash setting.

Drying Tips:

Avoid wringing them out—give them a gentle squeeze to remove excess water.
Air drying is ideal, but if you’re in a pinch, tumble dry on low heat (below 30ºC).
Pro tip: As socks age, a short tumble-dry session can help shrink the elastic fibers and restore optimal compression.
Never dry in direct sunlight or on heaters/radiators—this can damage the elastic fibers.

Detergents:

Stick to mild detergents only.
Avoid fabric softeners and never use bleach.

Compression Lifespan:

Over time, elastic fibres naturally wear down. Replace your socks at least every 6 months to maintain proper compression and support.

How to wear

Looking for the easiest way to wear full length compression socks?

Follow these four simple steps to get a smooth, comfortable fit from your BIOSx knee-high compression socks.

Step 1: Check left and right, then turn inside out

Check the L (left) and R (right) markings to match each sock to the correct foot. Reach inside and hold the heel, then turn the leg section inside out, leaving the foot section tucked inside.

Step 2: Position your foot and heel

Slide your foot into the sock, gently easing it over your toes and heel. Make sure your heel sits comfortably in the heel pocket.

Step 3: Smooth up your calf

Gradually ease the sock up your leg, spreading the fabric evenly along your calf until the cuff sits just below your knee. Smooth out any wrinkles or bunching.

Step 4: Check the fit

Keep the cuff flat against your skin. Avoid pulling the sock too high or folding or rolling down the top, as this can create an overly tight band.

Fabric Content

Crafted for comfort, performance, and durability—featuring ultra-breathable, moisture-wicking TENCEL™ for a soft, naturally sourced feel against the skin. 54% TENCEL™, 25% Recycled Polyamide, 21% Lycra®.

5 stars: 27 (90%)
4 stars: 1 (3%)
3 stars: 1 (3%)
2 stars: 1 (3%)
1 star: 0 (0%)

Some of the reviews shown are from related products the merchant grouped with this one.

Great Socks amazing customer service

Great Socks amazing service always very helpful and gave lots of advice and help to ensure we had correct Socks to benefit me.

Great sox!

Great sox! I'm recovering from major ankle injury and the compression is helping with the swelling as I get active again and the ankle feels supported. Love them. Recommend them. Will be buying more.

Perfect for long runs and recovery

Have worn during long runs and also got post run recovery, they have been great about to purchase a 2nd pair

Feel comfortable do exactly what designed to do

Comfortable and do what designed to do will be back for more

I found that both size sox were too small to fit my swollen feet. XL the biggest size

Long run this morning first time in my BIOSx performance crew socks

Long run this morning first time in my BIOSx performance crew socks, no hot spots no blisters!!

The best in business

Best socks I ever worn they feel amazing!!!

Fab Socks !

Soo comfortable- used for ultra distances and comfort the whole way

Elite!

The best socks ive ever worn. Highly recommended 👌

Awesome product! Love it and recommend it to anyone.

All Biosx are a dream!

The BEST socks ever!

Very comfortable on my run

BIOSx Elite Performance Crew Compression Socks - Black

Amazing quality and fit!

Amazing quality and fit! These socks are probably the best performance socks I have purchased in a long time. Fit well, keep your feet secure in your shoe and are amazing quality. Perfect for running or any exercise.

Great the best compression sock I’ve

Great the best compression sock I’ve brought

Had these on for 40 hours which included transfers

Had these on for 40 hours which included transfers, three flights, 6 hours and 3 hour layovers. Totally comfortable all the way

Great ankle support and comfort! Love the colour

Great ankle support and comfort! Love the colour too!

Love these socks for running!

These socks have made a great difference with foot/ankle/calf discomfort I was experiencing when running and playing hockey. Feel soothing for recovery too. The size options suited my measurements well, except if I wear for entire day 12+ hours, have caused light pressure sores at knee band area, so will avoid extended day wear. Love wearing for activity though, thank you for great product!

Very comfortable

Very comfortable and my feet were less tired after a day of being on them

Love love love!

Really made a difference to my calfs/ legs while running! Recommend to anyone wanting that extra support.

Amazing Performance Socks - Recommended AAA+++

These socks are simply amazing.
I bought a spare pair. 😁

Very supportive and

Very supportive and comfortable

Good quality

Really good quality, only thing is I should have gone up a size, even though my measurements suggested Mediums. Otherwise great. Just very hard to get on.

Good support & the quality is great

Good support & the quality is great.

Bought these for my husband! HE LOVES THEN SO SO

Bought these for my husband! HE LOVES THEN SO SO MUCH! Wants more so he can rotate 7 days

great socks

great socks. got it in time for Hyrox . was comfortable

Very happy so far

So far so good. They are comfortable and I have used them in a 2 hour gym session (training legs). They perform really well and the compression was just right. The ventilation is good as well. My wife just wash them and they dried in no time. I can understand why you run out of stock, they were worth the wait. I haven’t used the longer sock as yet but i expect the performance to be even better.

Very happy with the quality

Very happy with the quality. More comfortable and supportive than the known name brands I purchased from Rebel Sports. Very speedy delivery.

Best on the market

Love my pair 💕

The BIOSx difference

Why Settle for Less When You Can Choose BIOSx Compression Socks?

Other Socks

Inconsistent, generic compression offering minimal or no medical benefits.
Non-breathable materials trap moisture, breed odor, and cause discomfort and blisters.
Generic one-size-fits-all design ignores anatomical differences, compromising comfort.
Mass-produced with unsustainable materials, harming both you and the environment.

– Pronounced ‘bio-socks’

TGA-approved, graduated compression with proven health benefits.
Breathable, anti-bacterial fabric keeps feet cool, dry, fresh, and blister-free.
Anatomically designed for left and right feet to enhance comfort and reduce injury risk.
Australian-owned, sustainably crafted with premium yarns that care for you and the planet.

Our Pledge

One Pair Purchased = One Tree Planted

Put your best foot forward—every pair plants a tree and leaves the planet better!

Find out more

The Most Advanced, Comfortable and Sustainable Compression Socks

Covering All The Bases

See our Collections

Everyday Compression Socks

The secret to peak performance from sunrise to sunset. Uniquely designed for those standing, sitting, or always on the move.

Travel & Flight Compression Socks

First-class comfort for your feet, even in economy. Say goodbye to swelling and cankles.

Running & Performance Compression Socks

Engineered for greatness—be faster, stronger, and unstoppable with every step.

Recovery Compression Socks

Rapid recovery starts here—feel fresher, faster while your socks do the heavy lifting.

Work & Hiking Compression Socks

Tough as nails, soft as wool. Work socks that never quit.

Bio-Socks — Smart Science. Sharp Style.

Class I medical device included in the ARTG, 462085

100% Australian Designed & Owned

Customisable Designs (Co-brand)

100-day money-back guarantee

Free shipping over A$75

Buy Now Pay Later with AfterPay

Service	Cost	Metro	Non-metro
Australia Express	$12.95 AUD	1-2 Business Days	2-4 Business Days
Australia Standard	$7.95 AUD or *free on orders over $75 AUD	2-6 Business Days	Up to 7 Business Days
New Zealand Standard	$14.95 AUD *free on orders over $75 NZD	4-10 Business Days	5-10 Business Days
New Zealand Express	$29.95 AUD	2-5 Business Days	3-5 Business Days

Service	Cost	Region
Asia	$19.95 AUD	Brunei, Cambodia, Hong Kong Sar, India, Indonesia, Japan, Laos, Malaysia, Myanmar, Philippines, Singapore, Taiwan, Thailand, United Arab Emirates, Vietnam.
ROW	$49.95 AUD	Rest of the World