Used only once. Great large and lightweight backpack. The back system allows the bag to fit comfortably on the body when full and allows for the main weight of the bag to be taken on the hips. Loaded with handy pockets, there is a large main internal compartment, a hidden internal mesh security lid pocket and even a concealed rain cover for when the heavens open. Svelte and strong, the Peru 55 Litre is the full package for expeditions, hikes, travelling and more. Capacity - The Peru has a 55 litre capacity Ladder Lock System - Usually on larger backpacks, a system of loops that resemble the construction of a ladder. They allow the distance between the shoulder straps and hip belt to be increased/decreased to suit people of different heights, providing a more comfortable fit Fabric - The fabric is a hardwearing, durable polyester ripstop Hip Belt - A hip belt is a padded belt around the hips. It helps to distribute the weight of the Backpack evenly and reduce pressure on the wearer Sternum Straps - The adjustable strap used to fasten and tighten the bag around the chest area and provide additional load transfer Pockets - The Peru has a large internal compartment, expandable side pockets, internal mesh security lid pocket and a lower boot compartment Rain Cover - The raincover folds out to cover your Backpack and protect the contents from getting wet in the rain Compression Straps - The adjustable strap used to fasten and tighten the bag around the chest area and provide additional load transfer Bungee Cords - Perfect for attaching walking poles, ice axes, torches and bottles to as you go.