The Calia Waterproof sneaker from Merrell was designed with keeping the outdoor woman dry. Nubuck, suede and mesh upper with a bellow tongue helps keep debris out. DWR-Treated upper repels water and helps to resist staining. Waterproof membrane is treated with an Aegis antimicrobial solution to provide impermeable but breathable barrier. Breathable mesh lining treated with Aegis antimicrobial technology. Removable EVA footbed cradles and massages the foot with each and every step. Molded nylon arch shank provides increased midfoot support and lateral stability. Compression molded EVA foot frame delivers added stability and all-day comfort. Merrell Air Cushion midsole features Q-Form technology to smooth out strides and maintain alignment. 4.5mm sole lug depth is made of sticky rubber to ensure long-lasting durability on a variety of surfaces. Measurements: ; Weight: 12 oz ; Product measurements were taken using size 9, M. Please note that measurements may vary by size.