BottleBand-Train Harder We created the BottleBand to turn any bottle into a handheld. The BottleBand stretches to fit any sized bottle - from a Nalgene to a 16 oz generic bottle. Its one-size-fits all construction can also be tightened by pulling the circular bands apart to fit any hand size. The BottleBand is also extremely mobile. After youve finished your water, you can throw your disposable bottle away, put the band on your wrist, and run unencumbered. But the best part about the BottleBand is that it works better and costs less than a $20-30 handheld that can only fit one bottle. Don't believe in carrying water when you run? Give us $6. Well make you a believer!