• Sensifit™ – construction with elastic and breathable fabrics to optimize fit and stability. • 3D Airmesh – 3D mesh on the back for enhanced comfort during movement. • Quick link – elastic chest strap allows fast adjustment of the pack on the go. The elastic facilitates breathing when you speed up. • Includes 2 soft 500 ml bottles. • Internal hydration compartment. • Compatible with a 1.5 L reservoir (not included). • Built-in key holder. • Two front elastic pockets. • Zippered pocket on the back. • Front zip pocket. • Composition: polyamide. • Volume: 4 L. • Dimensions: 38 x 17 x 1 cm.