The water backpack aligns the back, directly connected to the digestive tract. Ventilated cover with air circulation settlers, determined for the use of heat. Feel the breath as you breathe in the fresh air. Features: Mesh straps on the outside, breathability and comfort. Made of tear-resistant and characteristic nylon material, characterized by the values of lightness and durability. Flexible front measurements and calculations fastened on the shoulder strap having all the necessary things, such as a mobile phone and energy gel. Reflective strips for safety and safety. devices for road cycling, running, hiking and more, compact and stable design minimizes air resistance. Technical data: Material: 90% nylon 10% elastane Color: Black and Blue Capacity: 5L Size: 35*18 cm/13,8*7,1 inch Weight: 140 g/ 4,9 oz List of ingredients: 1 * backpack with moisturizing vest 1 * water bladder