High Sierra AT605 Carryon On Wheeled Backpack with Removable Day Pack Day Pack Size: 19 x 12 x 5.5 in / 48 x 30.5 x 14 cm Capacity: 3068 cubic inches / 50.3 litres Main compartment has book-style opening, interior clothing hold-down straps. QUICK-CLIP buckle at the top of the removable day pack allows quick attachment to the main bag. Recessed, telescoping aircraft aluminum handle system with locking mechanism. Materials: 1680 Denier Duraweave, Metallic Mini-Weave, 900 Denier Duralite Size: 22 x 14 x 8 in / 56 x 35.5 x 20.3 cm