There's a reason everyone loves the MULE Hydration System and with a 9-litre capacity and 3-litre reservoir, it's hard to argue. With a narrow-gauge design it's totally lightweight, manoeuvrable and won't get in the way as you tackle the trails; even when loaded up for a full day of mountain biking. Designed with an Air Director back panel, specially designed back inlets channel air through the back, keeping your back cool and your ride free. The latest Crux delivers 20% more water per sip with an ergonomic handle for easier refilling than ever before. Additional features include reflective accents for visibility in lower lights and a removable stability belt keeping everything in place on uneven terrain.