The spacious Ergon BX4 backpack is the ideal companion for multi-day trips and expeditions. The redesigned, adjustable carrying system of this backpack allows for maximum adjustment to the size of the body, whether petite or stout.the "Adaptive Carrier System" uses the principle of load compression and thanks to the flexible aluminium profile, the backpack adapts perfectly to the rider's anatomy. Ergon backpacks offer not only unique ergonomics, but also a lot of features. Once you try them, you'll love them. Name: BX4 EVO Purpose: Multiday-Trips, Adventure Size: Uni Weight: 2000 g Capacity: 30 L Material: nylon, polyester Raincoat: included Backpack layout: 1 main compartment with two accesses, removable floor and two mesh inner pockets 1 fleece pocket in the main compartment 1 large front compartment with three pockets and key pocket 1 small front zippered pocket 2 large side compartments with several pockets 2 large hip belt pockets with several pockets 1 map pocket 1 raincoat pocket in the bottom of the pack