1. Portable storage bag, faithfully replicating the molded design of the device, waterproof and shockproof, perfectly organized. 2. Hard shell protection, pressure and drop resistance. Upgraded material thickness, lightweight, impact resistant, and safer to carry. 3. High quality PU coated splash proof fabric provides temporary waterproofing during brief rainfall, protecting internal equipment from moisture. 4. The integrated structure of Lycra fabric and double-layer Lycra shock-absorbing material effectively blocks external pressure. The snug fit design provides comprehensive protection. 5. Mountaineering buckle used to secure backpacks. Carefully crafted, with excellent quality.