The Pocket Mixer combines unique features from two of the most popular Simply Better Bottle styles, the Gym Bottle and Tornado Mixer. Outside, the bottles has a No Slip Pocket Grip that conveniently and securely holds a credit card, cash or keys, while inside a unique tornado shaped mixer creates a cyclonic mixing action for protein powders, meal replacement shakes or water flavorings. The 30 oz. bottles come in Lime or Pink with a Chug Cap to quench big thirsts. Additional features include interchangeable tops and flexible lanyards for easy carrying; made of BPA-free Tritan; top rack dishwasher safe and proudly designed and MADE IN USA.