It is heat insulation patchy. Even compared to other products, the number is large and cheap. And so color
Because there are two colors, there are times when it seems that it was good when there were multiple people.
The goods themselves can be used normally As the price is cheap, the cheapest the better it is this time because it was a campaign so I bought it next time I also would like to purchase a campaign I think that you should tell me which one should be purchased I think (for general purpose 8 oz?)