Designed for backpackers looking for a highly adjustable, comfortable and versatile high-volume pack for a variety of trips, the Aircontact 75 + 10 backpack is part of Deuter’s unique line of packs with an extendable collar to give an additional 10L of space without adding bulk when it isn’t in use. Key Features:

• Aircontact Lite Backsystem – The aluminum x-frame is designed to move with the wearer and provide superior load transfer; this frame is combined with open-cell foam to provide improved ventilation.
• Vari-Quick Adjustability – Made to fit a wide range of sizes, both the torso length and waist are highly adjustable.
• Expandable Collar – When a little extra space is needed for a longer trip or more gear-intensive backpacking adventure, the collar expands so to store an extra 10L of stuff.