The BA Hip Back is designed to meet the highest demands for enduro, all-mountain and gravel. It provides the perfect balance between ergonomics and ride comfort. Standard kidneys tend to shift sideways when riding on technical terrain. Ergon solves this common problem with a wide, non-slip waist belt combined with a unique compression system. Boa wheel and string tightening provides an adjustable reliable and stable fit. The rider can easily adjust the compression system with one hand while riding using a rotary mechanism. It pulls the entire kidney securely down and straps it closer to the body. The wide waist belt is breathable thanks to mesh inserts and ensures a stable and ergonomic adjustment in any riding situation. The upper and lower edges of the waist belt can be individually adjusted. The pockets of the BA Hip Pack are divided into a main upper chamber with a pocket for storing keys and another pocket in the lower part of the chamber. In addition, there is an additional pocket on each side of the kidney for your mobile phone and other small items. Possibility to insert the Ergon BH150 hydration bag (volume 1.5 litres) in a practical horizontal format. The bag is not included. Kidney capacity 3 Litres Unique compression system with Boa wheel for easy and quick pulling of the kidney closer to the body.