Smartwool PhD SKI MD Size:X-Large and it features strengthened glass

and it features strengthened glass lenses you can easily replace without tools

streamlined feeder to test a potential feeding site and move it as often as you like until you find the right spot

target shooters and nature watchers

providing additional comfort

oil-tanned and tumbled soft

Smartwool PhD SKI MD Size:X-Large and it features strengthened glassDescription Smartwool PhD Ski Medium Socks Dont let the cold stop you from taking one last run: the PhD Ski medium delivers maximum warmth and breathability when the going gets cold. Patent pending Indestructawool technology provides ultimate durability to make sure your socks are ready to go, run after run. Made with our 4Degree elite fit system for a sock that doesnt bunch, slip, or bind. Features: Sock Height: Over the Calf Body mapped mesh zones