TRIXIE's Natura Insulated Cat Home is designed as a cold season shelter. The outer walls, floor, and roof are insulated witih foam. Includes plastic flaps for weather protection. Hinged roof with locking arms for easy cleaning. Ventilation holes in back to promote circulation. The elevated floor promotes air circulation and protects your cat from ground chill and wet conditions, while the hard plastic footing prevents decay due to wet soil. Easy to assemble.