DESC: PF Flyers®: Decades ahead of their time, and now forever cool About 70 years ago, canvas footwear maker BF Goodrich® patented a wedge shoe insert that reduced foot and body fatigue, and dramatically improved comfort and performance. This "Posture Foundation" insert put the "PF" in PF Flyers, and pre-dated the whole biomechanic posture trend by about, oh, 50 years or so. Updated here with new colors, beefier traction and leather trim. With a fortified toe bumper and classic self-fabric lining for minimalist cool. And, of course, the "PF" so you can "Run Fast and Jump Higher!" Unisex sizing please sit fit tab for correct size Also shop other brand Crocs Keen Teva Earth Questions? Click product detail tabs below or contact us