The GoGo is a classic retro cycling cap, sporty protection from the sun and wind, popular before helmets. Now that helmets are universal bike gear, a cycling cap can be worn under a bike helmet for added comfort. Not biking today? The GoGo is a warm wool blend, soft, easy, pocket friendly, unisex, especially flattering on women. Offered in solid colors, plus Tweed and Stewart Plaid. Elasticized rear band for flexible fit. One Size Fits Most (S-XL)