Features： 1、Lightweight Construction: Crafted from lightweight material, reducing fatigue on long trips. 2、Water Resistant Fabric: High-density nylon fabric repels water, keeping gear dry in light rain. 3、Breathable Back Support: Equipped with ventilated mesh padding for airflow, ensuring a comfortable carry. 4、Quick Hydration System: Internal water bladder pocket with shoulder outlet, enabling easy hydration on the go. 5、Multi-functional Storage: Multiple compartments, including a waist zippered pocket, for organized storage of essentials. 6、 Specification： Colors: Black/ White (Optional) Material: Water Resistant Nylon Capacity: Large Capacity Features: Reflective Strips, Breathable Back, Hydration Compatible Dimensions: 23 x 40 x 10cm / 9.1 x 15.7 x 3.9in Weight: 440g / 15.5oz Package List： 1x Lightweight Water Resistant Backpack