SeatoSummit's award-winning Ultra-Sil Day Pack is a minimalist backpack that has incredible strength-to-weight performance and packs down to the size of a tennis ball. The 30D siliconised CORDURA® fabric and reinforcing bar-tacks at stress points enable it to withstand loads many times its own weight. With a 20L capacity, it's perfect for a summit pack, carrying groceries when on foot or on a bike, or as an extra traveling tote. The tiny packed size also easily fits onto your key ring, in a jacket pocket or a purse. With non-padded shoulder straps, the maximum load limit recommendation for a comfortable carry is 15 lbs / 7 Kg. Product Features Ultra-Sil 30D siliconized CORDURA® fabric for strength and durability Reinforced shoulder straps for increased carrying comfort Packs into an attached stuff sack that includes a handy carabiner Tech Specs Best Use: Summit Pack, Groceries, Travel Fabric: Siliconized Cordura fabric for strength and durability Special: Attachment point for a bike light Waterproof?: Water resistant Zip Options: Two-way zipper closure Dimensions (Imperial) 11.0 x 7.9 x 18.9 in 11.0 x 7.9 x 18.9 in 11.0 x 7.9 x 18.9 in Weight (Imperial) 2.5 oz 2.5 oz 2.5 oz Dimensions (metric) 28 x 20 x 48 cm 28 x 20 x 48 cm 28 x 20 x 48 cm Weight (metric) 72g 72g 72g