The Gregory Stout 45 RC Sandstone Hiking Backpack is a robust and comfortable 45-liter backpack designed for multi-day hikes. It features the VersaFit adjustable torso length with a breathable 3D foam back panel, ensuring a custom fit for both men's and women's body types. The padded wrap-around hipbelt includes large zippered pockets for easy access to essentials, while the perforated, breathable shoulder harness with a sternum strap and integrated safety whistle enhances comfort and safety. The wishbone alloy frame provides stable load management and torsional flexibility. Additional features include a zippered bottom sleeping bag compartment, a top zippered pocket with an underside zippered pocket and key clip, dual-side durable mesh pockets with top and bottom compression straps, a front oversized stretch mesh pocket with a durable fabric panel, quick-pull drawcord closure, top webbing compression, a hydration sleeve compatible with Gregory Hydro reservoirs (reservoir not included), a trekking pole/tool attachment point with a bungee closure system, a reinforced bottom panel with dual-layer construction, and an integrated rain cover stored in a zippered pocket under the top lid. The backpack is made with recycled materials, including 40% recycled 210D Nylon and 420D High-Density Nylon with C0 DWR, and a lining of 40% post-consumer recycled 135D Polyester with C0 DWR, designed without PFAS. The recommended maximum carry weight is 20 kg.