The OS1st TA6 Thin Air Performance Calf Sleeves are built for movement in heat, humidity, and high-output environments. Engineered with open-ventilation channels and mapped compression, they support the calf while maximizing airflow — so the sleeves feel lighter and cooler without sacrificing the stability athletes rely on.

• 6 zones of graduated light compression boost circulation and support the calf
• Patent-pending "Skin Thin" zones maximize airflow for a cooling effect
• Shaped-to-fit design for all body types; no binding, bunching, or pinching
• Ultra-soft, durable microfiber with silver-ion treatment for moisture wicking and odor control
• Seamless construction to reduce rubbing and irritation
• Stay-put fit for confident motion without slipping

Targeted conditions: shin splints, calf cramps, aching legs, recovery, muscular support, Achilles tendonitis, overheating

Details:

• 76% Micro-Nylon, 24% LYCRA® Spandex
• Package contains two (2) sleeves
• Sizes: S (ankle 6.5-8.5" / calf 9.5-14.5"), M (ankle 8.5-10.5" / calf 12-17"), L (ankle 9.5-12.5" / calf 14-19"), XL (ankle 12-14" / calf 14.5-20")
• Hand wash and hang dry only