The best water bottle. Hydro Flask Wide Mouth Water Bottle with Flex Cap 32oz/946ml Stainless steel insulated refillable reusable - our all-day 32 oz wide-mouth water bottle is the flask to grab to keep cold drinks cold and hot ones hot. The large opening makes it easy to add ice - and get yourself a bigger gulp. Fill up for adventure. TempShield double-wall vacuum insulation keeps drinks cold up to 24 hours, hot up to 12 Flex Cap is leakproof when closed Honeycomb Insulated Cap for maximum temperature retention Made with 18/8 pro-grade stainless steel for durability, pure taste and no flavor transfer Color Last powder coat is durable, sweat-free and colorful Wide Mouth opening is ice-cube friendly Bottle fits most backcountry water filters BPA-Free Dishwasher safe Not for use on a stove, in a microwave or freezer. 24 hours cold, 12 hours hot TempShield? double-wall vacuum insulation Leakproof when closed Pure taste, no flavor transfer Durable stainless steel Wide Mouth opening is ice-cube friendly BPA-Free Not for use on a stove, in a microwave or freezer Keep hot liquids out of the reach of children