Mammut Aenergy 18

"The Aenergy 18 from Mammut is the ideal companion for anyone who values lightness and functionality when hiking. This ultra-lightweight backpack impresses with its clever construction, which is largely made from recycled materials and therefore also scores highly in terms of sustainability. The ergonomic, wide shoulder straps ensure a high level of comfort, while the breathable back padding provides pleasant ventilation even on intensive tours."
"With a clever roll-top closure, the volume of the backpack can be expanded from 18 to 20 liters so that you can react flexibly to your storage needs. The two spacious main compartments offer enough space for your equipment, including a compartment for your hydration system. There is also a mesh pocket and two chest pockets to keep your provisions and small essentials close to hand."
"Reflective elements ensure safety in low light conditions and increase your visibility on adventures at night. The Aenergy 18 is therefore not only a functional, but also a safe and environmentally friendly companion on all your hikes"