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The OS1st TA4 ThinAirTM performance socks feature 4 zones of light compression and ultra-thin “SkinThin”™ zones, which are cushioned to let air flow through the sock for ultimate comfort. Durable enough for any level of movement. Targeted conditions: Blister protecti...
The OS1st TA4 ThinAirTM performance socks feature 4 zones of light compression and ultra-thin “SkinThin”™ zones, which are cushioned to let air flow through the sock for ultimate comfort. Durable enough for any level of movement.
General Sizing
For Women's Footwear: B is the standard width, 2A is narrow, D is wide, and 2E is extra wide.
For Men's Footwear: D is the standard width, B is narrow, 2E is wide, and 4E is extra wide.
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