The Ultra-Sil Stuff Sack is an ultralight but durable solution using a water-resistant, bluesignA(R) approved Ultra-Sil 30D nylon fabric with Non-PFC DWR finish. Ideal for organizing gear in your pack or bag, these stuff sacks incorporate a reinforced pull handle on the base, a easy to operate drawcord with Capture Cord Lock and are available in several great colors. The slippery fabric and secure grab handle at the base are for effortless sliding in and out of packs. Features Water-resistant, bluesignA(R) APPROVED Ultra-Sil 30D Nylon fabric with a PFC-free DWR finish Unique tear-proof drawcord throat with two super-strong Hypalon pull-tabs for easy operation Ultralight and super-strong, bluesignA(R) APPROVED Ultra-Sil 30D CorduraA(R) nylon fabric has a 2000mm hydrostatic head Double-stitched and reinforced stress points for added strength and durability Slippery fabric and secure grab handle at base for effortless sliding in and out of packs 1.5 Liter 3 Liter 5 Liter 8 Liter 13 Liter 20 Liter DIMENSIONS 4.5 x 4.5 x 8.1 in 5.5 x 5.5 x 9.2 in 6.5 x 6.5 x 11.0 in 7.5 x 7.5 x 12.8 in 8.6 x 8.6 x 14.7 in 9.8 x 9.8 x 16.9 in WEIGHT 0.6 oz 0.7 oz 0.9 oz 1.1 oz 1.6 oz 1.7 oz