Description Durable Tritan™ Material. Impact And Shatter Resistant. Double Wall Construction For Insulation of Hot or Cold Liquids. Snap-On, Spill-Resistant, 2-Piece Thumb-Slide Lid. Decoration Is Inserted Between The Clear Double Walls Of The Tumbler Then Ultrasonically Sealed To Provide Double Wall Insulation. Made In The USA. Lids Packed Separately and Unassembled. BPA Free. Meets FDA Requirements. Hand Wash Recommended.