Replacement Lid with Slider Closure for 30 oz Yeti Cup, RTIC Tumblers, SIC 30 oz Tumbler Spill Proof - Works Perfect with Straws (Lid only, 30 oz Tumbler Not Included) (1) Fits Yeti 30 oz tumbler, RTIC tumbler 30 oz, SIC 30 oz tumbler and other 30 Ounce Rambler Tumblers Sliding Closure and Straw Friendly Crystal Clear and BPA Free Rough riding in the boat, off roading in your truck, ATV or in the field Splash proof sliding lid, reduces the amount of spilage if your tumbler was to turn over