Trixie (natura) Hutch Covers are Made From Heavy Duty Canvas Material that provide both insulation and protection from the Rain. With Built in Fly Screens and Roll up Door Covers they are designed for use in both Winter and Summer, keeping your rabbits warm and dry in the winter and cool and safe from fly strike in the summer. These covers are for Trixie/natura hutches only. We stock over 80 different Rabbit hutch Covers