• Sensifit™ - Construction with elastic and breathable fabrics to optimize fit and stability. • 3D Airmesh – 3D mesh on the back for increased comfort during movement • Quick link – The elastic chest strap allows you to quickly adjust your backpack on the move. The elastic facilitates breathing when you speed up. • Compatible with two soft 500 ml bottles (not included) • Internal hydration compartment • Compatible with 1.5 L reservoir (not included) • Built-in key holder • Two front elastic pockets • Zip pocket on the back • Front zip pocket • Composition: polyester, polyamide, elastane • Volume: 4 L • Dimensions: 38 x 17 x 1 cm