The new, double-sided insulator is made of microfleece water repellent fabric specially designed to retain heat and repel moisture making heating and cooling your home or office more efficient. The microfleece fabric cover is durable and easy to clean. Ideal for exterior doors especially for all types of weather -snow, rain, sleet and wind. The insulating device will easily move with the door and glide over all floor types -carpet, laminate, tile and wood. There is no bending required to reposition. Keep drafts, dust, odors, insects, noise and fumes out! Easily customizable by trimming the tubes to fit all size doors and windows up to 36” long.