Waterproof Leather and mesh upper Breathable mesh lining Bellows tongue keeps out debris FIT.TRI blended EVA contoured footbed supports all three arches of the foot Merrell air cushion in the heel absorbs shock and adds stability Moulded nylon arch shank Q FORM™ 2 dual-density midsole with heel-centering technology provides gender-engineered alignment and comfort 3.5mm lug depth Weight: 576g Get walking with Merrell's Siren Hex Women's Walking Shoe. Engineered specifically for the way women move, the athletic Siren Hex shoe is a great choice for hiking or walking. Made for all-day comfort, the M Select FIT.TRI blended EVA contoured footbed and Merrell air cushion in the heel absorbs shock and adds stability, step after step.