OS1st Thin Air Performance Socks in Black Size:M Please note that measurements may

Please note that measurements may vary by size

Comfortable forgiving fully-adjustable belt

Swank XL shields your eyes from harmful UV rays

Putting in mile after mile on training runs requires comfortable footwear

Product measurements were taken using size 7

OS1st Thin Air Performance Socks in Black Size:M Please note that measurements mayMade 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