Ethylene Vinyl Acetate, which is a foam-like material used in, among other things, sports shoes and many items of clothing and sports equipment. It provides an optimum balance between flexibility and durability.

An innovative insulation made mainly from bamboo shoots, created by the KEEN brand. It is lightweight and anti-microbial, helping to keep the heat generated by the body close to the foot while blocking cold air from passing through the shoe upper.

A technology that relies on natural probiotics to provide a coating that blocks the growth of microbes responsible for creating unpleasant odours.

A highly comfortable waterproof membrane used in KEEN shoes. It is highly breathable and wicks moisture away from the outside of the shoe, keeping the foot dry whatever the weather.