Our Compression Sacks will help you squish down your gear with a 2:1 mechanical advantage. They're designed to evenly distribute the strain for maximum compression. You can rest assured our Compression Sacks will not fall apart when stressed thanks to our careful use of high quality fabrics and materials. Flip-Top-Lid design prevents strap tangling Made of 70D PU-coated nylon, with reinforced stitching on all stress points 4 straps for even compression; eliminates bulging Extra long straps so its easy to fill these to max capacity Nylon webbing grab handle on bottom 2,000mm waterproof fabric Note: seams are not tape-sealed; therefore this product is not waterproof, only water resistant Blue: XS, L Orange: S Green: M, XL