The Lightweight series stuff sacks are made of 70-denier polyamide fabric. Theyre a suitable choice for bags carried inside a backpack, rucksack, side bag, or sports duffel: the sacks own weight is very low, as the fabric doesn't have to endure abrasion against tree branches, bike racks or the inside of a canoe. Note! This is not a waterproof bag. The fabric is splash proof, but the seams are not sealed, and the mouth doesn't seal shut when tightened. - Outer fabric is bluesign-approved and has a light water-repellent treatment free from PFAS compounds - Drawcord closure - Convenient pull tab on the cord - Handle at the bottom for grip when pulling out clothes stuffed inside - Reinforced seams at carefully selected points The main image shows the color being sold. The additional images show the bag in a different color. In the image demonstrating the inner lining color, a 5-liter bag is shown; the product on this page is the 8-liter version.