the 280ml Rise Lowball Tumbler has Comfortably Slender Rim & Contours Protected by the Nontoxic Chip-resistant Klean Coat® Finish. Made From Certified 90% Post-consumer Recycled 18 & 8 Stainless Steel Metal, with Award-winning Climate Lock™ Insulation, the Splash & Spill-proof Flip Lid Features an Extra-large Opening That Helps Cool Hot Drink More Quickly & Feels Like You Are Drink Without Lid on at All. Lowball Cup Made for Sipping & Swilling Cocktails, Whiskey, & Any Hot or Cold Drink, Indoors & Out. Features. Made From 90% Recycled Stainless Steel Metal. Keeps Contents Hot for 2 Hours, or Cold for Up to 10 Hours. Chip-resistant Klean Coat Finish. Wont Retain or Impart Flavours. Leakproof. Opening Fits Ice; Fills & Pours Easily. Thin Rim for Comfortable Drink. Bpa Free. Dishwasher Safe Minimum Quantities Apply.