The Blender Bottle is a staple of college dorm rooms and gyms. Although taking protein supplements has been popular for decades, the Blender Bottle has grown in popularity because it is a low-tech solution to an age-old problem of clumped protein powder. It holds a large amount of liquid and has a wide mouth with very few edges on the inside, making it extremely easy to clean. Additionally, the plastic quality of the bottle is good for the price.