Deuter is a long-established backpack brand founded in Augsburg, southern Germany, in 1898. Initially, the brand produced items like delivery bags for postal workers and tent fabrics. However, it grew as a manufacturer of mountain backpacks by providing equipment to Alpine climbing teams. In the 1930s, it gained credibility by supporting successful expeditions to the north face of the Eiger and the Himalayas. Known as one of the earliest manufacturers of lightweight, durable nylon backpacks, Deuter developed the revolutionary "Air Comfort System" in 1984, which enhances breathability by adding a mesh panel between the back and the pack, establishing the current standard for trekking packs. Representative models include the "Futura" series of trekking packs featuring the Air Comfort System; the "Aircontact" series for large-scale mountaineering; and the "AC Lite" series, ideal for day trips and overnight stays. This page offers used Deuter trekking packs, large backpacks, daypacks, bike packs, child carriers, and other outdoor gear.