The Smart Flow Cup is a double vacuum insulated stainless steel cup which will keep your drinks cold for 9 hours and hot for 3! The 340ml Flow Cup is perfect for any beverage from hot coffee to cold water. It has a useful open and close sip lid. With the cups double vacuumed stainless steel walls, you won’t have to worry about burning your hand on the outside of the cup or the cup slipping out of your hand because of condensation. 340ml. These can also be pantone matched for an additional cost.