Features：

1. Universal: 7.4cm diameter fits most bottle cages;
2. Safe: Squeeze for water control,food-grade silicone bottle nozzle;
3. Insolated: Triple-layer insulation for extended cooling;
4. Leakproof: Leak-proof cross valve, no leakage when inverted;
5. Convenient: Detachable dust cover,5cm large diameter for easy cleaning;
6. Confortable: Ergonomic design for easy single-handed grip.