A proprietary waterproof, breathable membrane that lets vapour out without letting water in.
METATOMICAL FOOTBED DESIGN
This internal support mechanism is anatomically engineered to provide excellent arch support and cradle the natural contours of the foot.
A lightweight insulation that keeps you warm. Who knew charcoal bamboo could create something that keeps your feet warm? But it makes KEEN.Warm - a lightweight insulation that provides warmth where you need it most.