Hit the slopes this season in Smartwool Ski Zero Cushion Extra Stretch Over the Calf Socks. Now with extra stretch around the calf area, these ultra-comfy Merino ski socks feature Smartwool\’s most advanced Indestructawool technology for enhanced durability and Smartwool\’s 4 Degree elite fit system for an unmatched performance fit. Plus, body-mapped mesh zones for added breathability.