FITS Ultra Light Runner &ndash; No Show: Light Running Socks Merino Wool, Nylon, Polyester, Lycra LIGHTER THAN AIR: These extraordinarily light running socks provide all the comfort and support of a performance sock while giving you that freeing barefoot feel you crave. TRUE SIMPLICITY: Truly the running socks of the minimalist, the Ultra Light Runner design gives you no more than what you need. It features an uncushioned footbed and flat knit design for absolutely no bulk to slow you down. STAYS PUT: Our Full Contact Fit technology hugs the contours of your foot for a fit that will never slip or rub. The no show height means there are no saggy cuffs to fall around your shoes and get in your way. BREATHABILITY: The fully vented top is designed for maximum air flow around your foot to keep you cool and dry during your run. Perfect for intense workouts, trail runs, Cross Fit sessions, and other situations that call for the best in breathability. MATERIAL: Made primarily of anti-microbial, moisture-wicking merino wool, these socks are supremely comfortable while also offering advanced sweat control and durability. Our superior blend also includes nylon, polyester, and lycra.