# OS1st TA6 Thin Air Performance Calf Sleeves - Black

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

## Details

- **Price:** 34.99 USD
- **Vendor:** OS1st
- **Type:** Calf Sleeves
- **Tags:** 300+, done, Find Image, Fix, OS1st, seo-review, show-discount-banner, Socks

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Black / Small | 34.99 USD | In stock |
| Black / Medium | 34.99 USD | In stock |
| Black / Large | 34.99 USD | In stock |
| Black / XLarge | 34.99 USD | In stock |

## Images

- OS1st TA6 Thin Air Performance Calf Sleeves - Black
- OS1st TA6 Thin Air Performance Calf Sleeves - Black, side view

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> Source: [The Shoe Collective](https://theshoecollective.com/products/thin-air-calf-sleeve)
> Updated: 2026-10-12