Draft Guard Door and window Draft Stopper -- TAN (2 PACK) Strong and soft 100% polyester exterior in a stylish Tan color. Durable polyester fabric is surface washable. nsulator stuffed with styrene pellets and polyester fiberfill that effectively blocks drafts. Bundles of gravel positioned to give extra weight and keep the draft blocker in place. Three foot width fits perfectly at the bottom of most standard household doors and windows.