ROCKBROS 21oz Bicycle Water Bottle with 5hr Insulation & Leakproof Design

Better Materials for Healthy Concern

We take all food safety issues seriously and ensure our bike water bottle meets the highest health standards. The bottle spout is made with food-grade silicone to protect your health. Additionally, the PP5 material of the bottle body can withstand high temperatures of up to 75°C, ensuring no toxic substances are produced.

Easy Squeeze for Enhanced Hydration

The PP5 material makes this bike water bottle easy to squeeze, allowing you to intake more water with less effort. Pair this with the large spout for quick hydration during exercises or cycling. Stay hydrated and always “in the zone” with our design.

Optimized Size for Universal Compatibility

Especially designed for compatibility, this bike water bottle features a diameter of 7.4cm (2.9 inches), ensuring it fits most bottle cages on the market. Choose your cycling gear without worrying about size mismatches.

Laminated Foam Insulation for 5+ Hours

Insulation is crucial for maintaining water temperature. This bottle uses polyethylene foam in the inner layer to keep your water cold or warm as needed. Our experiments show it can keep ice cubes from melting for over 5 hours in summer.

High Flow & Self-Sealing Bottle Spout

This bottle offers a high flow rate due to its large spout, perfect for rapid hydration. Additionally, it features a self-sealing spout: pull the spout to unlock the seal, press to close, and a dust plug is included for added convenience.