This 50L nylon mountaineering bag has a large capacity and is water-repellent. The bag mouth is designed with a drawstring, and the capacity can be expanded by 5L after adjustment. The backpack has specific compartments for a water bag, a sleeping bag at the bottom, and a survival spoon built into the buckle, so you can travel with peace of mind. Buying a backpack also comes with a rain cover that can cover the entire backpack, which is very suitable for outdoor activities such as traveling, mountaineering, and camping. The logo can be customized according to your needs.