Feature:

1.Double walled stainless steel construction,food-grade antibacterial plastic.Portable Lock Design.

2.One-piece design, easy to carry,difficult to lose.

3.The lid was make up of stainless steel and plastic .

4.Small drinking mouth design,easy and health to drink,large mouth design easy for cleaning and filling water.

5.Food-grade stainless steel ,Food -grade antibacterial Plastic.

6.Unique design,aesthetic and practical to share.

7.With a portable lock, suitable for mountain climbing.

Insulation effect :

Assuming room temperature is 20 degree ,and full filled with 2 degree cool water .

10 hours later,following 10 degree .

15 hours later ,following 14 degree.

if you preheated or precooled before using it, the effect would be better.

Vacuum sports bottle