TOPOKO OEM Wide Mouth Bottle Double Twist Lid For Wide Mouth Bottles Leak-proof with Handle DESIGNED WITH DAILY USE IN MIND - This cap effectively controls the flow liquids, reducing sloshing and making it easier to drink from, even when moving. VERSATILE-PERFECT FOR COFFEE AND OTHER WARM BEVERAGES - This cap converts your Wide Mouth bottle into the perfect thermos or mug. 100% BPA FREE - This lid is made from BPA-free polypropylene for safe, reusable use. The lid closes completely and securely, ensuring there are no leaks or spills. PORTABLE SWEAT-FREE DESIGN - Fits Hydro flask Simple Modern bottles and TOPOKO Wide Mouth Bottle. Designed to insulate both hot and cold liquids, the air-tight cap allows you to keep beverages at your preferred temperature no matter where youre going, or what youre doing, making it perfect for the office, road trips, sporting events, at home use, and much more. IMPORTANT**- Please reference the product photos if you are an Amazon Prime customer and are having issues with your lid. Some of the lids shipped from Amazon come with the gasket upside down, it just needs to be flipped over. If you have any issues contact us directly. We are always here to help!