ROCKBROS Bike Water Bottle 21oz Bicycle Water Bottle for 5hrs Insulation Sports Squeeze Water Bottle with Leakproof Design

Better Materials for Healthy ConcernWe take all food health issues seriously and we take it into consideration when design our bike water bottle. This water bottle adopts food grade silicone on the bottle spout to ensure your health. And the PP5 material of the body can withstand high temperatures of 75°in case of melting and producing toxic substances.
Easy Squeeze to Intake More FluidPP5 material gifts this bike water bottle advantage of easily squeezing. Squeeze to intake more water with less effort to support your cycling. Cooperate with the large bottle spout to hydrate quickly, always stay online during exercise or cycling.
Optimized Size to Fit all CagesEspecially designed body size, this bike water bottles diameter is 7.4 cm/ 2.9 inche., This size water bottle can fit almost all size bottle cages on the market. We hope you can feel free to choose your cycling gear without concern about its size.
laminated Foam for Insulating over 5hrsInsulation means important to everyone, especially in hot summer or cold winter. This water bottle adopts polyethylene foam in the interlayer to keep water cold or warm when you need. After our experiment, this bottle can keep Ice cube from melting for over 5hrs in summer.
High Flow & Self-sealing Bottle SpoutExcept the high flow benefit from its large spout, this water bottle also adopts the self-sealing design. Pulling out the spout to unlock the sealing, and pressing the spout to achieve self-sealing. This design helps lock the water easily without closing the lid. There is a dust plug coming with the bottle for choice.