Naturehike Backpack Mountaineering Backpack Large Capacity Disaster Prevention Waterproof Lightweight Highly Breathable Rainproof Durable Pack for

---------------------------------------------------------------------- The mountaineering rucksack uses CORDURA fabric, which has good abrasion resistance, abrasion resistance, and tear resistance.For the same weight, CORDURA fabric is twice as strong as standard nylon fabric, three times as strong as polyester fabric, and cotton Made of canvas that is 10 times larger. Outdoor bags can be your companion in a variety of situations, from commuting and everyday use to playing outside, camping, outdoor festivals, training and practice, and traveling. I use it for commuting and shopping on my bike. A large-capacity backpack that can fit your jacket, lunch, and documents for work. There are two side pockets on the left and right, which can store umbrellas and water bottles, freeing up both hands! In addition to a 5L size rucksack, it also comes with a hidden emergency whistle. There is an external hanging strap that can be used to hang small items such as glasses or flashlights. Size and weight: 12.5X26X4cm 135g (5L), 42X30X9.5cm 336g (15L), 50X29X16cm 600g (25L), 62X25X20cm 1.1kg (30+5L)★★Note: This 30+5L has a capacity of 30L, and the roll opening at the top of the backpack has a capacity of 5L that can be expanded freely. Therefore, it is written as 30+5L. Please check. If you are dissatisfied with our products, you can contact us at any time and we will resolve your issue within 24 hours. How to contact us: Please feel free to contact us from "Account Service" → "Order History" → "Seller" → "Ask a Question" in your account service. You can exchange for a new item or get a refund. Size and weight: 12.5X26X4cm 135g (5L), 42X30X9.5cm 336g (15L), 50X29X16cm 600g (25L), 62X25X20cm 1.1kg (30+5L) ★★Note: This 30+5L has a capacity of 30L, and the roll opening at the top of the backpack has a capacity of 5L that can be expanded freely. Therefore, it is written as 30+5L. Please check.