Classy, sleek, and thoughtfully designed, the ASPEN TriMax Insulated Bottle offers a cool look with practical features you'll appreciate the more you use it. It will keep your drinks cold for up to 100 hours and hot for up to 20 hours. Its thermal properties can't be matched by any other bottle. It is made with internal threading so it opens and closes quickly and easily with just a one and a half twist. Use it as a wine growler and keep your red, white or rose fresh for hours.