Two Pack Bundle: Includes two 12oz wine tumblers for the ultimate pairing for enjoying wine, beer, coffee, and more | Vacuum Insulated: Simple Modern Spirit tumblers are double walled and vacuum insulated, which keeps your favorite beverage hot or cold for hours | Premium 18/8 Stainless Steel: Wine tumblers are made from high-quality, food-grade 18/8 stainless steel and is coated in a durable finish | Premium Copper Coated Insulation Layer: The exterior of the inner wall, in the vacuum sealed area, is coated in a thin layer of copper for added insulation | Why Simple Modern: Our core principles of Generosity and Excellence have inspired us to sell high quality products, act as great partners with everyone we interact with, and give away a minimum of 10% of our profits