Ultralight organization pays major dividends in the backcountry. Which is why we consider our Drawstring Stuff Sacks to be an excellent first step towards dialing in your pack system. With two fabric and six size options to choose from, youre sure to find one that works with your gear. If youre gearing up for your first overnight backpacking trip, or your thru hike, these will quickly become an essential piece of your pack system especially when paired with Pods, Roll-Top Stuff Sacks, and a Pillow. Nano 4 x 6 // Small electronics, first aid kits or wallet. Small 8 x 10 // Snacks, small electronics or toiletries. Medium 9 x 12 // Food, Flat Tarp or extra layers. Large 10 x 14 // Food, books, camera gear or clothing. X-Large 12 x 17 // Clothing, kitchen system or UltaMid. Jumbo 14 x 19 // Sleeping bag, down clothing or shelter.