Gregory's Zulu 45L backpack designed for overnight hikes provides comfort. Ventilated back panel creates open space which ventilates our back and allows the heat to escape while the Free
Float suspension flexes with the body for a comfortable form-fitting and prevents chafing. We love the large U-zip opening allowing easy access to our gear, as well as all external pockets which Gregory packed in the Zulu: extra large zippered waist belt pockets elastic mesh front pocket Double mesh side pockets and upper top pocket. zip pocket on floating lid. This gives us a lot of space where to stow our gear for an overnight trip into our favorite forest mountain or park. 45-liter backpack holds up to 40 pounds but it is best suited for overnight trips with less gear.