OS1st Thin Air Performance Socks in Black Darn Tough Midsole drop

Midsole drop

intense feelings of discovery

FS6® can be used for resting therapy or overnight and gives morning pain relief from the first day

Anatomical design enhances fit

FEATURING 360° LED ILLUMINATION AND REFLECTIVITY IN A FRAME WEIGHING UNDER 3OZ

OS1st Thin Air Performance Socks in Black Darn Tough Midsole dropMade for those who prefer a thinner sock that protects from blisters and keeps feet dry. Our Skin Thin top panel helps regulate temperature and circulate air throughout the sock. For the best fit, it is important to use the size chart before ordering. Ultra thin top panel to promote temperature regulation Woven lift bars to circulate air throughout the sock Targeted Conditions: Blisters Sore achy feet Hyper sensitivity Overheating Skin Thin Design