Enhance your biking experience with the JupiterBike Bike Cup Holder, designed for stability and convenience. Its double straps and triangular structure help keep your drink secure, even on rough roads, and the holder includes a sponge to stabilize and protect your bottle. The flexible drawstring accommodates cups from 16 oz to 32 oz to help prevent spillage, and two mesh pockets can hold a phone (up to 6.7 inches) or other small items so your essentials stay within reach.