I tried to see if the 'mountain bottle' with threatening heat retention is at a level where you can make cup ramen and coffee at the top of the mountain in winter. -
![THERMOS Mountain exclusive stainless steel bottle 900ml FFX-901 (Matte Black (MTBK))// Cold - Walmart.com THERMOS Mountain exclusive stainless steel bottle 900ml FFX-901 (Matte Black (MTBK))// Cold - Walmart.com](https://i5.walmartimages.com/asr/dc530db0-78c0-4ba8-9efc-532124153d1f.4fb18e2dbe7787ec045a02c6322596d7.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
THERMOS Mountain exclusive stainless steel bottle 900ml FFX-901 (Matte Black (MTBK))// Cold - Walmart.com
![I tried to verify the heat insulation capacity of the ultra-high performance heat insulation bottle 'mountain exclusive bottle' that cools only about 6 ° C in 7 hours and see if it I tried to verify the heat insulation capacity of the ultra-high performance heat insulation bottle 'mountain exclusive bottle' that cools only about 6 ° C in 7 hours and see if it](https://i.gzn.jp/img/2021/12/19/thermos-yamasenyou-bottle-indoor/00.jpg)