Yeti Rambler 20 Oz Tumbler The Quality You Deserve. The Yeti Rambler 20 Oz. Tumbler Is Equipped With A Double-Wall Vacuum Insulation, To Ensure Your Morning Coffee Stays Hot And That Evening Beer Stays Cold To The Last Gulp. With A Shatter-Resistant Magslider Lid, It's Never Been Easier To Get A Quick Sip While On The Move. Staying True To The Yeti Brand, The Yeti Rambler 20 Oz. Tumbler Is Exceptionally Constructed. Crafted Out Of Kitchen-Grade 18/8 Stainless Steel, The Yeti Rambler 20 Oz. Tumbler Is Puncture And Rust Resistant For Those Accidental Drops. Plus, The Yeti Rambler 20 Oz. Tumbler Is Dishwasher Safe, For Your Convenience. features:18/8 Stainless Steel Made With Kitchen-Grade Stainless Steel, So They're Puncture And Rust-Resistant. Double-Wall Vacuum Insulation Keeps Cold Drinks Cold And Hot Drinks Hot Until The Last Sip. Dishwasher Safe Because No One Needs More Work To Do. Magnets Makes For Easy Opening And Closing. | YETI Rambler 20 oz Tumbler - Black | YRAMT20BK | P.C. Richard & Son