Lightweight Hiking Vest Backpack with Water Bladder Compatible Design. Custom Logo & Design: Supports logo printing, color, size, and packaging customization via OEM/ODM. Water Bladder Compatible: Designed to hold water bladders for hydration during outdoor activities. Versatile Capacity: Available in 35-49L capacity with multiple color options. Safety Features: Includes night reflective strips and thermal insulation for safety. Fast Sample Production: Sample time is 3-7 days for quick approval and testing. Durable Material: Constructed from nylon for lightweight and durable performance.