Using these stuff sacks is super easy. Just open the unique drawcord top by pulling the hypalon tabs, and you can start putting your gear inside. Thanks to the white interior, it's easy to spot what you're looking for. For organization, pick different colors for different types of items. When it comes to packing, you can fit them neatly into your backpack. As these sacks are water - resistant but not waterproof, avoid submerging them in water for long periods. If they get dirty, you can hand - wash them with mild soap and let them air - dry. Make sure to store them in a dry place when not in use to keep the fabric in good condition.