The Gregory Katmai 55 in Oxide Green is a 55-liter men's backpack designed for multi-day adventures, offering a blend of comfort, durability, and eco-friendly materials. It features the FreeFloat 360 suspension system with dynamic flex panels and auto-rotating shoulder straps that adapt to your body's movements, ensuring a comfortable fit. The ventilated back panel incorporates Polygiene® Stays Fresh Technology to reduce odor buildup. Constructed with recycled nylon and a PFC-free durable water repellent coating, the pack minimizes environmental impact. Additional features include a full-length side-loading access zipper, an oversized front zippered compartment with a mesh divider, an internal hydration sleeve compatible with Gregory's 3D Hydro Trek Reservoir (sold separately), and multiple pockets and attachment points for organized storage. The adjustable torso length and customizable hipbelt enhance fit and comfort, while the pack's dimensions are 77H x 42W x 32D cm, with a recommended maximum carry weight of 23 kg.