HIWILL Double Walled Coffee Mug

The body of the coffee mug is made out of stainless steel, while the head assembly is plastic.
The outer part of the mug has a glossy, vivid blue finish that gives it a great look.
Additionally, the bottle's wall is around 2cm thick which should greatly increase the insulation capabilities of the mug.

As advertised, the head of the bottle can be locked into place using the flipping latch lock,
while in order to open the cap the spring-loaded push button has to be pressed.
In order to keep the container waterproof, the manufacturer has installed a rubber boot in the top and bottom of the cap that is used to keep the head completely sealed while closed.

In total, the mug can store up to 380ml of liquid that translates to around 2 medium cups of coffee.
Thanks to the double insulated walls, the mug can be used to store both cold or hot liquids.
After trying the mug for some time, I found out that it can retain the desired temperature of the coffee for more than 8 hours.

As a bottom line, I would say that I am more than pleased with the performance and comfort of the mug.

Product's link (non affiliate): HIWILL Double Walled Coffee Mug
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