Giro Peloton Cap The Peloton Cap is probably the most versatile accessory you can grab on warm days. It provides you with shade, provides an additional layer of insulation when it gets cool or windy and wicks away sweat. We designed it so that you can wear it perfectly under your helmet, because it is so thin that it does not crease and forms unpleasant pressure points. In addition, we have shortened the brim to improve your peripheral vision. Features: reflective visor. Rear panel elastic thin seams reduce pressure points when wearing under the helmet. Material: 100% polyester. Sizes: one size