Hikers. rejoice! Deuter's Airlite 22 ultralight hiking pack lets you go fasterand farther than ever before. With a streamlined fit and ample cargo room.this day pack delivers incredible comfort. Equally at home on the trail orcity streets. the 22-liter Airlite will keep you cool all day long. Theinnovative Aircomfort back system uses a lightweight tensioned mesh panel tocreate ventilation space between the backpack and the wearer's back. reducingperspiration by up to 25%. Comfortably carries up to 18 pounds. Measures 21 x10 x 7 in and weighs 2 lbs 3 oz.