Brumate 25 Oz Rehydration Bottle - Matte Hunter2 IN 1. CANT BEAT THAT. The most functional water bottle of its kind the BrMate ReHydration Bottle is a 25oz canteen with two functions: Hydration Mode, and Party Mode. Holds 25oz of your favorite liquor so you can keep your spirits ice cold while on the go with a leak proof, twist off lid that doubles as a 1. 5oz shot glass. Or, screw on the included straw lid with a durable, easy carry handle , so you can rehydrate the morning after and use it as