1.AceFrame™ Harness System 1.1 3D Arch Aluminum Frame: Ergonomic design for back support and breathability. 1.2 FreeFit Adjustment: Four-position back length adjustment for different body shapes. 1.3 Hollowed Shoulder and Waist Straps: Comfortable, breathable, and load-reducing. 2.Newly-developed HyperGuard material combines lightweight, durable CORDURA® fabric with high-performance PU coating. (CORDURA® is twice as durable as nylon, three times as polyester, ten times as cotton canvas.) 3.The sandwich-style front compartment can be expanded or compressed as needed, with an open middle sleeve ideal for storing helmets, clothing, and more. 4.The 180° rear opening with customizable dividers ensures organized gear storage and easy access.
