This backpack is designed for backcountry skiing and snowboarding. The back panel opens for easy access to your gear even with your board attached. It also has pockets to store essential backcountry gear like a shovel. There are pockets inside the main compartment and on the back panel lid for small items, making for a well-thought-out design. Capacity: 38L Material: 630d nylon Weight: Approximately 1500g Back Length: Approximately 48cm This is a domestic manufacturer, so the construction is very solid, and there are no problems with normal use at present. There are no noticeable stains or damage at first glance. As shown in the 7th image, the straps for opening and closing the zippers of each pocket were torn in about two places, so all the straps have been replaced with thin cords. Thank you.