OS1st Thin Air Performance Socks in White Clothing Men FS6® functions as a strengthening

FS6® functions as a strengthening support and Plantar Fasciitis preventative

These materials help create softer landings and a more energized toe-off during your training

royal blue

more energy return and more propulsion than the original

Rubber tread boosts durability and traction on asphalt

OS1st Thin Air Performance Socks in White Clothing Men FS6® functions as a strengtheningMade 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