8th Generation Corvette Emblem Metallic Tonal Tumbler Black. Keep your beverages at the perfect temperature with this premium 20.9 oz thermal tumbler. Crafted from double wall 18/8 stainless steel with copper vacuum insulation, it maintains hot drinks hot and cold drinks cold for hours. The high polish accent and powder coated finish deliver a sleek, durable look, while the clear acrylic push-on swivel lid ensures easy sipping on the go.