These are a lightweight liner sock designed to wick away moisture and regulate temperature. They are toe socks so that can take some getting used to.
FeaturesTaken from website:
Liner Series (Base Layer)
Available in lighweight CoolMax®, the Liner keeps feet comfortably cool, dry, and protected
• Seamless 5 toe construction creates a moisture wicking and friction free environment and fights odor
• Designed to be worn as the base layer toesock which can interface with your favorite traditional outer sock, or worn alone for those who prefer an ultra-sleek and lightweight design
• Perfect complement to barefoot performance footwear
Anatomical Interface System (AIS) is engineered to separate your toes with a thin, anti-friction membrane that is both lightweight and breathable. Seamless in construction, the tetratsok forms to every contour of your foot. This allows for true restriction free movement from your heel to five toes, encourages healthy circulation, and eliminates skin on skin contact between your toes to prevent blisters from developing.