The Hydro Flask Wide Mouth 946 ml water bottle is designed for all-day hydration at home, work and outdoor adventures. Made from durable stainless steel, it features TempShield® double-wall vacuum insulation to keep drinks cold for up to 24 hours and hot for up to 12 hours. The Wide Mouth design is compatible with all Hydro Flask Wide Mouth caps and lids for added versatility. Leakproof when closed and dishwasher safe for everyday convenience, it is built for reliable performance wherever you take it. Not suitable for use in a microwave, freezer or on a stove.