OS1st | Thin Air Performance Calf Sleeves | Unisex Knitted contrasting inlay with hood and

contrasting inlay with hood and drawstring

1 1/4" signature moisture wicking comfort elastic waistband

Ethically Sourced: Our merino wool is mulesing-free

the Bunny Hop tank offers a flattering racerback cut for freedom of movement and style

OS1st | Thin Air Performance Calf Sleeves | Unisex Knitted contrasting inlay with hood andMORE OS1st PRODUCTS OS1st TA6 Thin Air Performance Calf Sleeves: Cool, Comfortable, and Built for Endurance Stay cool and protected during any activity with the OS1st TA6 Thin Air Performance Calf Sleeves, designed with cutting edge technology for ultimate performance. Crafted using advanced 400n medical grade machinery, these sleeves feature an ultra thin "Thin Skin" fabric profile, delivering unmatched comfort, durability, and ease of use. The