Features: - Professional marine grade 11 ounce polyester canvas that is waterproof, puncture resistant, tear resistant, abrasion resistant - Door windows and rear window are constructed of durable 30 mil tinted Aqua-View Vinyl with a cold crack rating of -20 degrees - Convenient roll-away doors provide the option of taking your doors with you and stow-away when not in use - Full length double pull YKK marine grade zippers - Complete with self-adhesive velcro, installation and care instructions - Hand-crafted - Made in the USA Available Option: - Zippered Side Windows - Windows zip on 2 sides, the front and top