The Satch Ergonomic School Backpack is designed to adapt to your growth, providing comfort and functionality for everyday use. Key attributes: Gray | Polyester | Water-resistant | Dirt-repellent | Adjustable straps | Expandable pockets | Reflective bands | Headphone outlet | Dimensions & fit: 30 x 45 x 22 cm | Adjustable back length | Composition & care: Polyester | Wipe clean with a damp cloth.