The single-compartment Fly 30 backpack is designed for hiking and cycling. The E3D back system is well ventilated and keeps the center of gravity as close to the back as possible. The backpack has a separate pocket for a hydrobag and is reinforced with a removable HDPE board, which helps to distribute the weight properly and eliminates pressure on the back. It is equipped with balance straps, loops for attaching poles and other equipment, side pockets and a zip pocket on the waist belt. The top filling is secured by a string with a brake and a backpack lid. On the inside of the lid there is a mesh pocket for valuables with a carabiner for keys and on the outside there is a zip pocket.