A great fitting multi-day pack can be the difference between a grueling march and breathtaking adventure. The Granite Gear Lutsen 45 provides comfort and fit innovations, allowing hikers to quickly adjust to a perfect fit, even when on the trail. Besides the convenient ease of adjustability, the Lutsen provides superior load-transfer capabilities to the shoulders and hips. With the Re-Fit system, hikers will be able to go farther, more comfortably. From stretch side pockets and water-resistant zippers & fabrics, to conveniently-placed hydration ports and compression straps, it's all there. The most important aspect of the Lutsen 45 is the innovative Re-Fit Air Current suspension system, which offers a custom-fit for a wide variety of body types. Custom fitting takes just a few simple steps. Adjusting the hip-belt is as easy as sliding the belt from behind the pack's ventilated back panel and adjusting the hook-n-loop to match your waist size. Adjusting the torso size is equally as simple. Simply break the hook-n-loop connection and re-align it using the markings that correspond to your torso length. And that's it, you're fit! In addition to having a pack that boasts world-class materials, construction and design, you have a pack that's sized specific to you. Features: - Refit A.C. frame with 40lb load rating - Small/medium torso 14 - 18" - Large/x-large torso 18 - 22" - Volume 45 liters / 2746 cu. in. - Weight: 3 pounds - Refit fully adjustable torso length with dual density shoulder harness - Refit fully adjustable (from 28-40in), dual density hip belt - Zippered stretch mesh hip belt pocket - Extreme water resistant barrier zippered tricot lined hip belt pocket - Hydration port & internal hydration sleeve - Tool loops & adjustable tool holders - Large side, stretch woven pockets - Side and front compression straps - Stretch mesh front pocket - 100d high tenacity nylon with barrier DWR - 210d high tenacity ripstop nylon with barrier DWR - Alternate images do not reflect actual color