The Kilpi RILA-U is a practical and handy backpack for hiking and outdoor activities with a volume of 20  liters, enough for day trips. The back of the backpack is soft, padded with foam and allows airflow between the back and the backpack. The shaped and perforated shoulder straps are used for better micro ventilation. They can be fastened with height adjustable chest straps, which include a signal whistle, and a padded waist belt with two zippered pockets. The bottom hides an integrated rain cover for the backpack. On each side you will find a lightweight mesh pocket for a half-liter bottle and an elastic loop for attaching the sticks. Inside the main compartment there is a pocket for the water tank with an outlet for a suction hose and a small zippered pocket for valuables. The other two pockets are located on the front, for quick access to their contents.