The Flow Insulating Tumbler is a must-have for anyone on the go. Made from high-quality stainless steel, this 350 ml tumbler is designed to keep your drinks at the perfect temperature for hours. What sets the Flow apart from other tumblers is its unique foam insulation, which ensures that your drink stays hot or cold for longer. But that's not all - the Flow also features a leak-proof, push button system that can be operated with just one hand. The rubberized button provides a slip-proof grip, adding to the overall smooth feel of the tumbler. And with its integrated silicone strap, the Flow is easy to carry or attach to your bag or gear. This tumbler is part of a trio of matching drinkware items, including a drinking bottle and an isolating flask. Get your hands on the Flow Insulating Tumbler today and experience its unparalleled functionality and style.