The Futura Air Trek SL 45+10L Backpack offers reliable support for long treks. It features a 55L capacity designed for multi-day excursions and includes the VariSlide system with VariFlex hip fins for added comfort. The backpack has a built-in hydration tube exit and an integrated rain cover to protect gear from wet alpine weather. Gear loops provide storage for ice axes, trekking poles, and other essentials.