20 Oz Stainless Steel Skinny Tumbler  Tumbler specs: - Top rack dishwasher safe (hand wash only when personalized with adhesive vinyl, laser engraving, etc) - These tumblers work well for hot or cold drinks, and can keep drinks cold for up to 24 hours or hot for up to 12 hours. They fit most cup holds and reduce or eliminate condensation. NOT microwave safe. - The tumblers come with a clear acrylic push on lid and plastic straw which matches the tumbler color, with the stainless tumbler having a clear straw. The tumblers are BPA Free and non-toxic. - Double wall 18/8 stainless steel thermal bottle with a powder coated finish that protects against chips and scratches. Copper vacuum insulation