Shakers and water bottles are two types of accessories that serious athletes can use to make life just that much easier. Any workout regimen can cause dehydration, and a water bottle provides a convenient way to hydrate. Shakers are convenient for those who use powders as part of their body building or workout regimen. Many supplements come in powder form to be mixed with a liquid to be taken. A shaker provides a consistent and handy method for mixing supplements into drinks. While water fountains and bottles are also usually widely available, a reusable water bottle or shaker is not only more expedient, but also is healthier for the environment and ensures the quality of the drink is exactly as you like it.