Osprey Hydraulics Reservoir - 2021 - 3L YGroup_7033449447469 The BBT-35 is a dual-sided

The BBT-35 is a dual-sided tool to suit 12 and 36 notch external BBs

With plenty of grip and a wide 2

Retention System: The U80 gets Azur's comfort fit system which allows you to dial in your fit using the rear adjuster

Constructed from durable lightweight materials

Mount style: 22

Osprey Hydraulics Reservoir - 2021 - 3L YGroup_7033449447469 The BBT-35 is a dual-sidedOspreys Hydraulics 3L Reservoir by Hydrapak is ideal for large volume packs and long duration activities. The HydroStatic backplate provides a structure for easy loading into a full pack and maintains a flat profile. Thoughtful design makes filling, cleaning and most importantly staying hydrated on the trail easier than ever. All parts are BPA free, phthalate free, lead free, guaranteed. All materials are certified food safe according to FDA and EU