Spacious backpack Ergon BX4 is an ideal choice for long trips on bikes or foot. The re-worked, adjustable back system allows maximum customization depending on the rider’s height. The Adaptive Carrier system uses a load compression system and the pack perfectly adjusts to the rider’s anatomy thanks to a flexible aluminium profile. The Ergon packs offer a unique ergonomics and lots of smart features. Once you’ll put it on, you’ll simply love it.