The opening is secured with Velcro and it's a flap-type closure. It can hold a lot and is a very easy-to-use backpack for anyone. I purchased it on Mercari in September 2025, but since I don't use it much, I'm selling it. ■Item Description■ A highly rare backpack, with only 50 units produced in the first run for each color, embodying the condensed craftsmanship of Japanese artisans. With meticulous stitching and carefully selected parts, it exudes a presence. The opening is designed to be folded, and the use of waterproof zippers throughout ensures extremely high water resistance. This backpack reduces approximately 1890g of CO2 per unit. ■Specifications■ Model Number: ps-046 Size: W270×H470×D160mm Weight: Approx. 1300g Pockets: Waterproof zipper pocket × 1 Open pocket × 2 Back waterproof pocket × 1 Material: Tire tube / Genuine leather / Nylon Country of Origin: Japan CO2 Reduction: Approx. 1890g ■Condition■ I have only used it a few times since I received it. ・It is currently stored indoors. ・There is a slight fraying at the bottom. 　It is not to the extent of creating a hole. ・Otherwise, the condition is very good. ・There are no noticeable stains, but please be aware that the material is recycled tire. ・The front and back are clean with no holes or tears. Practical with exterior pockets. - Color: Black/Brown - Pockets: Exterior pockets available - Straps: Adjustable shoulder straps Thank you for looking. Color...Black system Accessories...No accessories Stains/Tears, etc...None