With an innovative stainless-steel design, the Trail Lightweight Wide Mouth bottle is 25% lighter than Hydro Flasks standard 32oz bottles. Thanks to the TempShield insulation, it will keep hot drinks hot for up to 12 hours and cold drinks cold for up to 24 hours. Letting you bring more while carrying less, the 32oz/946ml capacity makes it ideal forlonger days out of doors.