... bottle(18/8 stainless steel water bottle,newest cap)double wall ,wearable,good lookingsize:300ml --450mlwith cap(pp#5 , double ... flask(600/800ml) 1. s/s 304 stainless steel, Double wall, different kind of lids available.2.Certificate:BPA free, FDA ... flavorsRounded corners no place for crud or bacteria to hideDouble wall prevent heat at least 18-24 hoursCap is made of ...