Who says you cant wear a flip-flop all year long The Shay from Teva takes comfort of the Mush sole and combine it with a non-restrictive upper and seamless lining to create the ultimate sockless shoe for year round use. Features include waterproof leather and air mesh upper. Slip on style with elastic retention strap. Moisture-wicking mesh lining. 7mm Mush EVA insole and low profile non-marking rubber outsole.