Deuter Bike I 18 SL has been developed for mountainbikers that value ease of use and good organisational qualities: from the trail in the mountains all the way to the ice cream shop. The innovative Deuter Airstripes backsystem allows free air circulation over 80 % of the riders back, while still providing a secure, compact fit even on rough rides. The backpack aluminium frame rods offer additional stability and are bendable for custom fit. In addition, its ergonomically shaped shoulder straps with Soft Edge technology, ventilated hip fins and adjustable chest strap provide perfect load transfer and manage carrying comfort and durability. Wallet, tool, pump etc. are well arranged in large zipped front compartment with organisational elements and key clip. In order to fulfill its specific challenges, the rucksack has removable foam mat, integrated and stowable helmet holder, detachable rain cover or sunglasses stow system. It also features side zipped pocket on back for smartphone and two elastic side pockets. In addition, there is stretch inner compartment. The rucksack is hydration system compatible. Reflective elements on front pocket and shoulder straps allow improved visibility. As for Deuter SL type product, it fits primarily female anatomy. Carrying systems are shorter than men´s and shoulder straps become slimmer towards ends. Hip belt perfectly hug the female anatomy.