OS1st Thin Air Performance Socks in Steel Blue Size:L New Helion™ superfoam midsole for

New Helion™ superfoam midsole for big energy return

and Indestructawool™ and Shred Shield™ technologies

Made in the USA of Imported Yarn: 57% Merino Wool 39% Nylon 2% Recycled Nylon 2% Elastane *Specific percentage of Recycled Nylon will vary as we transition to 100% Recycled Nylon in future seasons

The lower layer is an EVA foam cushioning cover for maximum comfort

No bleach or fabric softeners

OS1st Thin Air Performance Socks in Steel Blue Size:L New Helion™ superfoam midsole forMade 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