NWT Rainbow Narrow Strap Sandal. Size M (women’s 6.5-7.5). Sierra Brown. A casual flip-flop features layers of sponge memory rubber that mold to your feet for absolute comfort. The leather upper is stitched with an ultra-durable nylon thread for long-lasting wear. • Flat sole • Leather upper and lining/rubber sole. Ships quickly from smoke and pet free environment. Happy to answer questions and consider offers.