Stainless Steel Outer and Inner. Made With BevGaurd™ Technology. Keeps Your Drink Cold For 12 Hours And Hot For 3 Hours. Screw-On Locking Müv Lid Made From Tritan™ Renew from Eastman. Easy Grab Handle On Lid. 16 Oz. Brewing Capacity Plus 4 Oz. for Milk or Cream. Pour Over Nesting Cup So You Can Brew Your Favorite Coffee Directly Into The Tumbler. Craft The Perfect, Single-Cup Pour Over Anywhere. Cup Holder Friendly. Includes 10 Custom-Fit Biodegradable Filters. For New Filers, Please Visit And Ordered Off The BrüMate Website. Meets FDA Requirements. BPA Free. Hand Wash Recommended.