[2-layer waterproof structure] The outer layer has been treated to be water-repellent, blocking moisture from permeating through the surface. High fastness to washing and long-lasting effect. The interior is equipped with a highly breathable and highly waterproof material: WPF-TEX film. It does not allow moisture to pass through the outside and allows moisture inside to escape, so your hands will not get wet even when it rains or snows, and sweat will evaporate to keep you from getting stuffy.