Fineplus Unisex New High-capacity Oxford Waterproof Casual Backpacks Lightweight nylon fabric,wearable and waterproof Lining is polyester M:11.81"(L) x 7.87" (W) x 18.90" (H) Please accept 1"-1.5" error Suitable for 160cm-175cm tall Retractable buckle on the waist of the bag to protect the fastness when loading