For world travelers who want a multipurpose, comfortable trekking pack for extended journeys. The Aircontact Core is made of recycled material. Sustainable and resource-saving. The main material yarn is made from 100 % recycled industrial waste and certified to recognised standards. This and the numerous helpful features make the Aircontact Core your must-have for the hiking season. deuter - Aircontact Core 40+10l Trekking Backpack reef ink