Worried about Too little water when you drinking?<br> Are you not comfortable enough to drink with a straw?<br> Worried about the lack of air circulation when you drink water? <br> Our sport top cap unique design allows you to separate the air and water circulation. When you drink water, the air enters through the air valve.Drinking water is smooth,Let you experience pleasure when you after exercise or you want to drink water on go wherever you are.No leak.<br> Possible compatibility:Stainless Steel Bottles with 1.81 inches inner screw mouth diameter.<br> <br> 100% REFUND GUARANTEED:If your Morla water bottle top lid does not meet your expectations,contact us we will return your money.<br> <br> Click the<b> Add To Cart</b> or List button on the top of the page to get your Standard Sport cap now!This will be <br> one of your best purchases and can be one of the best gifts