Aquamira Tactical Rigger 2 Liter Pressurized Reservoir Backpack Coyote 85413 The Tactical RIGGER hydration pack holds your Pressurized Reservoir close to your back in a versatile system with the ability to easy attach to other gear. Attach your RIGGER to an existing pack or gear and take your water with you in a portable multi-functional system. The RIGGER features 360 degree D-Rings and stowable straps for ease in strapping to other gear or packs.