Thin AirTM Performance Calf Sleeves

SKU: OS1-43341B

Breakthrough product specifically designed for comfort, fit, protection and breathability. OS1st TA6 Thin AirTM Performance Calf Sleeves feature never before applied technology to keep your legs cool and protected during any activity.  Created using 400n medical grade machinery and materials we are able to build in ease of use, comfort, and durability with the thinnest leg fabric profile ever made! The "Thin SkinTM" construction maximizes air-flow achieving a cooling sensation to your legs thereby increasing stamina and endurance.  Our OS1st manufacturing technology has been leveraged to create the most unique performance calf sleeves ever made in an athletic recovery sleeve!

Targeted Conditions:

  • Boosts circulation
  • Shin Splints
  • Recovery
  • Calf cramps
  • Muscular Support
  • Achilles Tendonitis
  • Overheating

Performance Features:

  • Advanced medical device for recovery and enhanced performance.
  • Skin ThinTM zones to increase air flow
  • Creates cooling effect during any activity or under any apparel
  • Easy-on fit
  • Wear alone or paired with OS1st® TA4TM Thin AirTM Performance Socks
Comes with 1 pair of sleeves per package Download technical sheet here. 
Before ordering, use this size chart for accurate fit. 
STAY ACTIVE, COOL and COMFORTABLE with our newest addition to our OS1st line, OS1st Thin AirTM Performance Calf Sleeves featuring breakthrough Skin ThinTM construction.

Performance is the key to success, especially for athletes. Your body needs proper circulation to keep up with your active lifestyle. OS1st Thin AirTM Performance Calf Sleeves help you maintain your active lifestyle and daily schedule by boosting circulation and providing a cooling benefit to keep your legs fresh and healthy.

So Light and Comfortable You Feel the Support without Feeling the Sleeve

The OS1st TA6 Thin AirTM Performance Calf Sleeves were strategically designed to be the world’s thinnest calf sleeves without compromising fit and feel.  Still providing OS1st’s standard of quality, the patent pending thin air performance are made with all the best features you normally find in your favorite calf sleeves…moisture wicking, odor control, but now, OS1st has combined those features with our patent pending air movement system design creating a unique one-of-a-kind experience. OS1st TA6 sleeves are lightweight, cooling and protective.


The OS1st TA6 Thin AirTM Performance Calf Sleeves feature 6 zones of graduated light compression, a shaped-to-fit design for all body types made with ultra-soft yet durable microfiber.  These sleeves will amaze you with the patent pending air-flow system through the super thin upper and lower zones. No binding, no bunching, no pinching…just the perfect fit for enjoyment of your active lifestyle. OS1st calf sleeves are easier to move in compared heavier supports.  Find prevention and relief from muscle cramps, shin splints and Achilles tendinitis. Enhanced circulation keeps your legs and muscles supported through mild to intense activity.

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