30 OZ YETI Lid, Coolreall Replacement Splash Proof Lid for 30 OZ YETI Rambler Tumbler, Open - Close Slide Lids, Crystal Clear Splash Resistant Cover (Only Lid) Coolreall YETI lid made by the Eco-friendly, non-toxic plastic material which is durable, firm and enduring. It is splash proof lid for Yeti, Rtic, Iconiq 30 Oz Rambler Tumbler.Great Splash Proof Sliding Lid. Lightweight, has a sip hole that allows for direct sipping or for use with a STRAW. Great for Use with Smoothies, Coffee, Tea, Festive Cocktails, Children's Bottles,Use in Car Thermos or Water Bottle, or for Athletes. Once you lock which can save the liquid from splashing while walking or driving, keep it COLD or HOT MUCH longer than normal lid and stop most leaks .