The Off Trax 40+10 Backpack offers ergonomic EVA foam back support and breathable mesh straps for comfort on long treks. Its 40L capacity expands to 50L, providing versatile storage with a modular top-load pocket, zippered bottom compartment, large side pockets, and daisy chain attachment points for easy gear access. Designed for multi-day backpacking, it balances comfort, durability, and organization.