Packable Waterproof Handy Lightweight Travel Backpack Hiking Bag 30L (Green) Lightweight and packable Pack-in pocket doubles as a inner pocket Breathable mesh shoulder straps, bottle holder on the both sides Unfold: 20 x 10 x 8 inches(26 x 20 x 50 cm) Fold: 7.4 x 1.6 x 5.9 inches(19 x 4 x 15 cm)