就是这种绝热的水瓶,叫Hydro Flask,其它牌子便宜些。我女儿去哪儿都带着,冰水可以走到哪里喝到哪里。
https://www.rei.com/product/168732/hydro-flask-wide-mouth-vacuum-water-bottle-32-fl-oz?CAWELAID=120217890013316713