Includes one small and one medium Thule Compression Packing Cube. Durable compression zipper eliminates excess air between clothes to maximize packing space Semitransparent fabric to see what is inside while still keeping belongings discreet. Webbing handle allows you to easily grab and hang the cube while traveling. Compatible with all sizes and brands of luggage (most carry-on luggage fits 4 small cubes or 2 small cubes with 1 medium cube) Ideal for underwear, socks and t-shirts (we recommend rolling your items to save space and minimize wrinkling) Made with premium YKK zippers for added durability. Durable, bluesign approved 100D ripstop nylon material that minimizes impact on the environment, is water-repellent and will withstand years of use