1. Large diameter bottle, pouring and pouring are very convenient.
2. The white cover of the spout control water flow can be removed by itself and can be put into large objects such as ice cubes.
3. Made of high quality silica gel, mildew proof and BPA free, FDA certified.
4. Soft foldable, can store any backpack pocket after stacking.
5. Spherical shape, no fold will leave crease.
6. Aluminum round hanging ring.
7. Can be used in the microwave oven, can hold boiling water, can be frozen, apply the dishwasher.
8. Stable shape, will not release harmful chemicals.
10. More environmentally friendly, durable, and drop resistant than plastic cups.