This Hydro Flask with a wide mouth opening is big enough for a big day spent on the road or outdoors, with a wide opening for quick and easy filling. The unique TempShield insulation keeps beverages cold for up to 24 hours and hot for up to 12 hours, without condensation. Large 946ml (32oz) size for all-day hydration Non-slip powder coat finish TempShield insulation technology keeps beverages hot or cold for longer - perfect for any adventure Made from durable 18/8 pro-grade stainless steel Wide top opening (5.75cm diameter) BPA-free and phthalate-free Dishwasher safe Comes with wide mouth flex cap for easy carrying Hydro Flask Insulated Stainless Steel Water Bottles are available in a range of sizes and colours to suit any taste!