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| Sock Size | Men | Women | Euro | Ankle Circumference |
|---|---|---|---|---|
| Small | 3-5.5 | 4-6.5 | 33-36 | 5-8" |
| Medium | 6-9.5 | 7-10.5 | 37-41 | 7-10" |
| Large | 10-13 | 11+ | 42-46 | 9-13" |
| X-Large | 13.5-15 | — | 47-50 | 11-15" |
| XX-Large | 15.5+ | — | 51+ | 13-18" |
| Sock Size | Men | Women | Euro | Ankle Circumference | Calf Circumference |
|---|---|---|---|---|---|
| Small | 3-5.5 | 4-6.5 | 33-36 | 6.5-8.5" | 9.5-14.5" |
| Medium | 6-9.5 | 7-10.5 | 37-41 | 8.5-10.5" | 12-17" |
| Large | 10-13 | 11+ | 42-46 | 9.5-12.5" | 14-19" |
| X-Large | 13.5-15 | — | 47-50 | 12-14" | 14.5-20" |
| Sock Size | Men | Women | UK | Euro |
|---|---|---|---|---|
| Small/Medium | 3-7 | 4-8 | 2-8 | 35-39 |
| Large/X-Large | 8-14 | 9+ | 8-13 | 39-47 |
| Size | Wrist Circumference |
|---|---|
| Small | 5.5-6" |
| Medium | 6-7" |
| Large | 7-8" |
| X-Large | 8"+ |
OS1st TA4 Thin Air Performance Socks are engineered for unmatched comfort, breathability, and blister protection. Built with 200n medical-grade machinery, these ultra-thin socks feature Thin Skin construction and lift bars to maximize airflow and keep feet cool. Perfect for high-intensity activity and sensitive feet.
Features
- Height: no show
- Cushion: light
- Heat release
- Lift bars for maximum air flow
- Light compression
- Anatomical fit for left/right foot with Y-Gore heel
- Seamless construction
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Cushion
| Sock Size | Men | Women | Euro | Ankle Circumference |
|---|---|---|---|---|
| Small | 3-5.5 | 4-6.5 | 33-36 | 5-8" |
| Medium | 6-9.5 | 7-10.5 | 37-41 | 7-10" |
| Large | 10-13 | 11+ | 42-46 | 9-13" |
| X-Large | 13.5-15 | — | 47-50 | 11-15" |
| XX-Large | 15.5+ | — | 51+ | 13-18" |
| Sock Size | Men | Women | Euro | Ankle Circumference | Calf Circumference |
|---|---|---|---|---|---|
| Small | 3-5.5 | 4-6.5 | 33-36 | 6.5-8.5" | 9.5-14.5" |
| Medium | 6-9.5 | 7-10.5 | 37-41 | 8.5-10.5" | 12-17" |
| Large | 10-13 | 11+ | 42-46 | 9.5-12.5" | 14-19" |
| X-Large | 13.5-15 | — | 47-50 | 12-14" | 14.5-20" |
| Sock Size | Men | Women | UK | Euro |
|---|---|---|---|---|
| Small/Medium | 3-7 | 4-8 | 2-8 | 35-39 |
| Large/X-Large | 8-14 | 9+ | 8-13 | 39-47 |
| Size | Wrist Circumference |
|---|---|
| Small | 5.5-6" |
| Medium | 6-7" |
| Large | 7-8" |
| X-Large | 8"+ |