Teva - Gamma (Middle Grey) - Women's: Built on a last specific to a woman's foot. Perforated synthetic leather and mesh uppers drain quickly and are highly breathable. Mono-sock upper construction with molded T.P.U. exo-skeleton provide additional structure and support. 5mm EVA drop-in midsole for cushioning. Shoc Pad in the heel for shock absorption. Highly aggressive crystal River Rubber wrap-over outsole for added traction over all terrain, submerged or dry.