Thermik Splash Proof Slider Lid for 30 oz Tumblers, Fits YETI Rambler and more (Smoked) Clear enough to see your drink, dark enough to keep the suns rays from melting your ice Made from BPA-free Tritan copolyester, top unclips for easy cleaning Sits below the rim making your drinking experience more comfortable Large opening is big enough for any straw Slows down accidental spills and helps protect your home and car