Vaccum Insulated bottle https://koputokiryo.com/%e3%80%90%e8%8b%b1%e5%ad%97%e6%96%b0%e8%81%9e%e8%aa%ad%e8%a7%a3%e3%81%ae%e3%82%b3%e3%83%84%e3%80%91%e3%82%bf%e3%82%a4%e3%82%ac%e3%83%bc%e3%81%af%e7%82%ad%e9%85%b8%e9%a3%b2%e6%96%99%e3%82%92%e6%b3%a1/vaccum-insulated-bottle/