Superior quality
 The HYDY thermos series are subjected to a rigorous quality control in the production line under the safety standards of the Swiss company SGS. It is made of special kitchen stainless steel 18/8 (304), without BPA or other chemicals or substances harmful to health. It is easy to clean and resistant to corrosion, allowing you to drink your beverages without any worries.
 Excellent thermo insulating effect
 Whether you're in the office, the gym, or enjoying the outdoors on a sunny day, the double-layer stainless steel thermos are designed to preserve heat for 12 hours and cold for 24 hours. No matter where you are, you can enjoy your hot or cold drinks.
 Double exterior protection
 The special kitchen sislicone is used in the outer layer. It is non-toxic silicon, free of plastic and 100% recyclable. The design mimics the precious Macaroon pains and patterns, and is slip-resistant and drip-proof, allowing you to easily carry it without accidental spills. Nor does it scratch the surfaces of the furniture or suffer condensation on the outside of the bottle, preventing the rest of the objects from getting wet when carried in the backpack or bag.
 Fashion accessory
 The stylish and ergonomic design of the thermos is your most dazzling fashion accessory. Of course, taking care of your family and the environment is the attitude that is in fashion. You can change the silicone layer with Macaroon colors to suit your feelings and emotions at all times.
 Live in "green"
 60 billion bottles of plastic annually are thrown into our oceans and fields and this situation continues to pollute our environment. For now, carrying a thermos designed in this sense and easy to use allows us to help in the conservation of our environment and reduce water consumption.
 * Before the test, the thermos bottle is preheated for 1 - 2 minutes with hot water, then, the thermos bottle is turned upside down at room temperature of 25 Cº +/- 2 Cº, then hot water is added and the temperature of this drops to 95 Cº +/- 1Cº, or cold water is added and the temperature is allowed to rise to 0 Cº +/- 1 Cº. Then the test begins. After 6 hours, the temperature is measured at the bottom of the bottle.