Ref. : 8735773

Our design teams developed these compression running socks to improve running performance.

Why compress the calf? To improve blood flow, reduce tissue vibrations and improve biomechanical parameters.

  • 35/38M-2.5/5M undefined
  • 39/42M-5.5/8M undefined
  • 43/46M-8.5/11M undefined

Our services :

  • Free delivery for Decathlon brands orders above $399
  • All Decathlon products are eligible for lifetime return

Products benefits

Muscle support

compression helps improve running performance

Reduced chafing

Loop pile fabric and special yarn in specific areas to reduce blisters

Moisture management

Material absorbs and wicks perspiration away

Technical information


We conducted a study into the effects of compression when running.
The study proved that when runners wear KIPRUN compression socks:
1 - blood flow is improved by 47% which increases oxygen levels in the muscles,
2 - vibration in tissues is reduced, which in turn reduces muscle damage,
3 - biochemical parameters for running are improved.
As a result, wearing compression socks helps improve running performance.


Energise, tone up and improve performance with the specific yarn in the 900 compression socks. The natural mineral permanently incorporated into the fibre reflects the thermal energy of the body to gently energise your cells, improve muscle elasticity and enhance the appearance of your skin. The results of the tests of the specific yarn show that these incredible fabrics offer both athletic performance and benefits for physical appearance.


The 900 compression socks are more effective than the 500 compression socks because they cover more calf circumference sizes. And above all, each size offers a narrower calf circumference range for greater effectiveness, especially at the outer limits of every range.
The more precise calf design and finer knit also ensure more effective performance.


Compression using the socks is effective DURING exertion.
These socks are not suitable for recovery.

How to choose your size:

For superior performance, take various precise measurements of your biggest calf and select the matching sock size.
size S - calf circumference: 28 / 31 CM
size M - calf circumference: 32 / 35 CM
size L - calf circumference: 36 / 39 CM
size XL - calf circumference: 40 / 43 CM

How to slip on the leg sleeve

Slide your sock over itself going from the calf down to the ankle.
Using both hands, stretch your sock out to the side to get it over your foot and roll it carefully up the leg from just above the ankle joints.
Adjust the sock so it is just below the knee, ensure the material is evenly spread around the calf with no folds along the leg*.


* Priority should always be given to the fit below the knee.


1 year

Product concept & technology

Product Composition

Socks 84% Polyamide, 16% Elastane

User Restrictions

These compression running socks are not MEDICAL DEVICES


At Kiprun, all our products are tested by a panel of users under the real-life conditions for which they are designed. These tests are organised and supervised by a team of engineers dedicated to the task. All these tests enable our product managers, engineers and the whole Kiprun team to develop, create and design technical products that meet our users' needs.

Approved By

The DECATHLON SportsLab, our R&D department, works with the Université de Saint-Etienne.For the specific yarn, external independent lab tests have confirmed the increased emissivity of far infra-red radiation towards the body, as well as its tried and tested odour reduction properties and UV protection benefits.

Maintenance advice

Machine wash - 30° max - normal

Do not bleach

Do not tumble dry

Do not iron

Do not dry-clean

User reviews

Questions & Answers