Outlander Travel Packable Ruck Backpack Daypack Lightweight compact packable day pack. Packs down neatly into its own stuff sacks. Bottle holder on the both sides. Material: nylon ; Weight: 0.16 kg Product Dimensions: approx. 15.7"x11.4"x6.6"; Compact Pouch Size: 6.5x6.5x1 inches .