The Atlant 18L hardshell version is inspired from the classic version. Made with a thicker fabric it's even more robust ! The padded back panel, perforated straps added to the lumbar to hip belt provide you comfort and breathability ! Inside, the main compartment can carry a 1.5L hydration system and it features a padded laptop pocket (13"). The quick zippered access, side pockets and elastic carry option make it a easy-to-use bag perfect for your street and moutain expeditions !