Features: Professional marine grade 11 ounce polyester canvas that is waterproof, puncture resistant, tear resistant, abrasion resistant Door windows 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 It is not recommended to exceed 45mph with soft goods installed.