Lost your Mintie bottle lid? Just need a spare? The Mintie Stainless Steel Bottle Lid is a suitable fit for all three sized bottles - the 350ml, 500ml and the 750ml. It comes with a screw top mechanism. The lid is made from stainless steel and has a steel handle for ease of carrying. The top is bamboo and has a removable BPA-free silicone seal for ease of washing. To keep your Mintie lid in tip top condition we recommend washing it in hot soapy water.