Dahlgren HalfPass Socks 100% Other Fibers Made in US Patented DriStride Technology absorbs transfers and removes moisture keeping feet drier and more comfortable all day long Half Crew length is shorter than traditional Crew, longer than a quarter for "just right" height Light cushion under the foot, cushion free instep and leg for lightweight comfort, Shrink resistant Dahlgren's become a Secret weapon against temperature swings, discomfort and even blisters, We want you to focus on your Activity, Not your feet Alpaca/Merino blend insulates from heat and cold providing year round comfort, 75% Polyester/23% Nylon/2% Spandex Half cushion, half crew for light cushioned comfort while hiking, cycling, or casual wear Lightest weight, flat knit top Patented Dri-Stride System Therma-Dri in transfer & evaporation zones