Sea to Summit Ultra-Sil Stuff Sack (Medium) Siliconized nylon stuff sacks are not only super strong & lightweight, they&rsquore an absolute &ldquomust-have&rdquo in specialty retail stores. We use a super light, Ripstop Cordura in a range of colors. & our eye-catching packaging really shows off the compact size of these sacks. * Made of 30D Diamond Siliconized Cordura * Three times lighter than typical stuff sack fabrics * The fabric is impregnated with silicone to make it waterproof to a pressure of 2.8 psi * Fabric has a slippery finish for easy packing * Reinforced pull handle on bottom * Uses the smallest possible cord & cord lock for top closure * Bar-tack reinforced in all stress points * All seams are double stitched for extra strength * Colours may vary Description Size Weight Volume Siliconized Stuff Sack XS 5&rdquo x 12&rdquo 0.5 oz 240 cu in / 4 Litre Siliconized Stuff Sack S 6.5&rdquo x 13&rdquo 0.6 oz 430 cu in / 6.5 Litre Siliconized Stuff Sack M 7&rdquo x 15&rdquo 0.7 oz 580 cu in / 9 Litre Siliconized Stuff Sack L 8.5&rdquo x 17&rdquo 1.0 oz 960 cu in / 15 Litre Siliconized Stuff Sack XL 9.5&rdquo x 19&rdquo 1.2 oz 1400 cu in / 20 Litre Siliconized Stuff Sack XXL 10.5&rdquo x 23&rdquo 1.4 oz 2080 cu in / 30 Litre