product description:
Advanced Vacuum Insulation Technology! James Dewar invented the first vacuum flask in 1892. Double walls mean that the inside liquid compartment is protected from the heat or cold of the outside. Hot or cold drinks are insulated and will hold their temperature for longer. Keep hot/warm drinks for 12 hours and cold drinks for 12 hours.
Best Choice to Carry Your Coffee! HIWILL Vacuum Insulated Mug fits two regular coffees for you. It keeps your coffee hot after a day. One handed operation for on-the-go drinking, rather than having to mess about pouring a cup like other thermos, just unlock, push the button and drink.
Product Specifics: Brand: Hiwill
Product Dimensions: H23cm x D5.8cm(9" x 2.3"), H23cm x D6.5cm(9" x 2.6")
Capacity: 380ML, 450ML
Body Material: 18/8 & 304 stainless steel
Lid Material: Food-grade silicone
Keep warm drinks: >65℃ in 6 hours; >50℃ in 12 hours; >35℃ in 24 hours
Keep cold drinks: <8℃ in 6 hours; <10℃ in 12 hours; <13℃ in 24 hours;
Overall Features & Benefits: 1.Stainless steel double walled vacuum insulated flask
2. lightweight and 100% leak proof
3.Wide mouth, easy-flip press button lid and anti-hot sipping design
4.Lid locks to prevent accidental spills
5.One handed operation for on-the-go drinking
6.Keeps hot and cold for up to 12 hours
7.Fits most car cup holders
8.Great gift for men & women
Box Contains: 1 X Vacuum Insulated Flask
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![Hiwill Double Walled Vacuum Insulated Travel Coffee Mug, Stainless Steel Flask, Sports Water Bottle, One Hand Open (16OZ-[G-3] Black)](https://images-na.ssl-images-amazon.com/images/I/31g6queLIVL.jpg "Hiwill Double Walled Vacuum Insulated Travel Coffee Mug, Stainless Steel Flask, Sports Water Bottle, One Hand Open (16OZ-[G-3] Black)")
