Each Stuff Sack in this set is made from a durable 70D recycled Nylon and is the perfect solution for organised modular packing on any adventure. A white interior coating helps to shed moisture and makes finding your contents easy. The unique tear-proof drawcord top with Capture Cord Lock opening is easy to use. The three colors provide for optimum color coding and organisation of your gear. These tough Nylon Stuff Sacks do not have taped seams or a roll-top closure; so they are water resistant rather than waterproof. Nylon Lightweight, bluesign APPROVED recycled 70D Nylon fabric with a PFC-free DWR finish Unique tear-proof drawcord throat with two super-strong hypalon pull-tabs for easy operation Reinforced stitching on all stress points and overlocked fabric edges for added strength Robust, waterproof PU-coated 70D recycled nylon body fabric has a 2,000mm hydrostatic head Light-reflecting white interior coating makes seeing and finding gear easier; sturdy, Nylon webbing handle on round base provides a secure grab point ?3 Liter, 5 Liter, and 8 Liter