The canopy is made of Dupont Cordura Nylon was added. As designed the canopy can take the worse Mother Nature can throw at it. It features a high quality, -42° F. cold crack vinyl windscreen, to protect your children from the wind and snow. The canopy allows them to enjoy the winter outdoors with you, as a family. If the weather is good, the windscreen rolls up and out of the way. The high profile gives your child plenty of wiggle room and visibility. The set includes a three-point harness holds them safely in place. The harness is adjustable to securely hold children, up to 30 lbs. Crome-Moly steel tubing provides support for the canopy and doubles as a very tough tip bar, the sled is extremely stable! A large, adjustable top vent exhausts the warm moist air while keeping out the snow or rain. A large "U" shaped zipper at the rear gives you easy access to 2,000 + cu. in. of storage space for diaper bag, lunch, thermos, dry clothes, etc.