Travel smart with space-saving compression bags -- how to pack clothes to save space without a vacuum! Reusable bags are perfect for compact packing on the go or at home. Simply roll, seal and store! You can see what's inside, and the dual-zipper design helps achieve a great seal. Set of 12 includes 4 each of 3 sizes: small (19 3/4" long x 13 1/4" wide), medium (19 3/4" long x 15 3/4" wide), large (23 1/2" long x 15 3/4" wide). Polyamide polyethylene. Wipe clean with damp cloth.