Requires less than a kettle of water to fill up (less than 1 litre), cleverly designed bumps on the surface of the bottle trap air within the fabric making it stay warmer for longer.
Getting Warmth or Cooling down with YuYu
For hot use:
When filling your bottle with hot water, do not use boiling water ; always allow cooling for 1-2 minutes. Hold the bottle by the neck firmly, fill slowly and carefully approximately 2/3 to allow for water to disperse when in use.
For cold use:
Simply half-fill with cold water, fold in half and put in your freezer for approximately one and a half hours or until you can feel the water start to freeze.
If you are going to switch between hot and cold use we recommended buying a second bottle.