As its name suggests, Tretorn"s Gunnar rubber boot is utilitarian in function, but with its sneaker-like aesthetic, this waterproof boot feels more "play" than "work". 100% waterproof, natural rubber upper. PVC free. Matte and textured finish. Two tone lace. Collar width: 37 cm. Shaft height: 25.5 cm. Plaid microfleece lining. Textile sockliner. EcoOrthoLite insole. Rubber midsole and outsole