Oasis Women's Mary Jane Shoes velcro Trek-Dry vamp lining has natural antimicrobial properties; ceramic fiber helps disperse moisture. Natural Skintex lining treatment, with antibacterial silver ions, won't irritate sensitive skin. Shock-absorbing Oasis Grasp outsole resists slips and helps keep you steady as you walk. Canvas and suede upper, microfiber with bamboo and ceramic fibers treated with urea and silver... EVA insole, ethylene propylene rubber midsole, nylon and fiberglass shank, etc.