Crocs Prepair Flip is a sports recovery flip flop from Crocs. Your preparation for the next race begins as soon as you slide into these sporty flip-flops that will help repair and protect your feet after your competitive workout. Crocs Prepair Flip Flops enhance recovery after athletic activity by reducing muscle exertion, improving blood flow and fatigue relief, so creating greater recovery potential. US Ergonomics scores Crocs Prepair Flip Flop peak pressure reduction by up to 50% and peak muscular effort by up to 24.6%.