Satch Air Backpack is an ultralight, ergonomic 26-litre school backpack designed for organized daily use and all-day comfort. It pairs a ventilated back system with smart internal organization for laptops and daily essentials. Key attributes: Multicolor | Polyester | Water-repellent outer material (1,500 mm hydrostatic head) | Ultralight construction | Breathable back panel | Reflective safety elements | Adjustable back length (1.40 m–1.80 m) | Padded laptop compartment (fits up to 14") | Main compartment | Organizer compartment | Expandable external side pockets | Stable base that remains steady despite light weight | Attachment points for personalization (SWAPS/TAGS) | Ergonomic back system | Softmesh 3D padding | Airway Mesh ventilation | 3-Layer Foam support | Reflective elements | Dimensions & fit: Dimensions: 28 x 45 x 16 cm (L/P/H) | Volume: 26 l | Weight: 1000 g | Adjustable back length (Your-Size-System) for heights 1.40 m to 1.80 m | Ergonomic weight distribution for improved comfort | Composition & care: Outer material: 100% polyester | Lining: 100% polyester | Padding: 3-layer foam (Softmesh 3D) | Wipe clean with a damp cloth. Do not machine wash, do not bleach, do not tumble dry, do not iron, do not dry clean.