The RIG Chill insulating cover is the perfect accessory for your Geigerrig hydration system. Slide your reservoir and back plate into the RIG Chill and keep your water cold for extended periods of time. The RIG Chill also includes loops for carabiners or tie down loops and several convenient carry points. Best of all, the RIG Chill slides right into your existing Geigerrig engine hatches with ease.