Zak Designs Spiral Bluebell Hydration 16-ounce Vacuum Insulated Stainless Steel Tumbler

This tumbler has double-wall vacuum insulation, which keeps drinks cold up to 14 hours and hot up to 3 hours. It also prevents condensation from forming on the outside of the cup, eliminating messy water rings, and prevents warm beverages from burning your fingers. The flip lid is threaded to stay securely in place, and it protects drinks from splashes and debris when taking them outside and on the go. The Zak Designs tumbler has a capacity of 16 ounces and fits in most car cup holders for travel. Made from durable stainless steel, it should be hand washed to preserve the vacuum seal; all materials are completely BPA free and the tumbler should not be microwaved.