For those who wish to maximize your time outdoors and minimize the amount of sock on your feet, the PhDA(R) Outdoor Ultra Light Mini is made for you. It's light in weight, but heavy in tech, making it the ideal (out)side-kick.Benefits4 Degree(TM) Elite Fit SystemFor a dialed, performance-oriented fit with flex zone at ankle jointIndestructawool(TM)Indestructawool(TM) technology features a patent-pending construction method for exceptional durability and comfortMade In The USA PhDA(R)Built for Performance in the Highest DegreeShred Shield(TM)Shred Shield helps reduce wear from toesUltra Light CushionThe absolute minimum between you and your shoes.FeaturesSock Height: MiniIndestructawool(TM) technology for enhanced durability4 Degree(TM) elite fit system for a dialed, performance-oriented fitShred Shield(TM) technology reduces wear from toesBody-mapped mesh zones for added breathabilityVirtually Seamless(TM) toe for enhanced comfort3.75" overall heightMade in USA of Imported Yarns: 48% Merino Wool, 48% Nylon, 4% ElastaneStyle: SW001412CareMachine Wash Warm, Wash Inside Out.Do Not Bleach.Tumble Dry Low.Do Not Iron.Do Not Dry Clean.