Backpack, 25 liter, with shoulder strap, ergonomically designed air vents. Materials: • 600D polyester PVC • 840D Nylon with double Tpu • Welded high frequency seams for complete waterproofness (IP 65, resistant to heavy rains and extreme conditions) • Reach compliant Equipment: • System of closure reversal to ensure impermeability of the backpack • Side pocket for in-network • Strip riflettent • Closure strap • Back and shoulder straps with padded EVA yellow