Trike Cover - XL Made of medium-weight Tri-Max? polyester, this is the only trike cover to be waterproof, All seams are electronically heat sealed and have silver heat-resistant lower panels, Exclusive Perma-Venting? system prevents condensation buildup by allowing constant air circulation, 50" rear zipper gives access to trunk without cover removal, Snug-fitting, elasticized bottom has 1" grommets in center and at front wheel, Packed in included compression bag for the in compact storage