Hydro Flask Tumbler 0.47l/16oz Our 16 oz (473 ml) Tumbler with TempShield™ double-wall vacuum insulation is the perfect size to keep your iced coffee cold for up to 24 hours. When it’s time to unwind with an afternoon chai tea, it’ll stay piping hot for up to six hours. The narrow design feels comfortable to hold, and the insulated lid ensures that your favourite drink stays just the way you like it. Features TempShield™ insulation keeps cold drinks cold for up to 24 hours and hot drinks hot for up to six hours The narrow design is easy to hold and fits into most cupholders The insulated press-in lid, so you can take your beverage anywhere, features Honeycomb Insulation™ for additional temperature control Durable 18/8 Pro-Grade Stainless Steel construction BPA-Free and Phthalate-Free Black 21 model has older and simpler lid without the closing system Size & Dimensions 16 oz Volume 473 ml Mouth Diameter 8.6 cm / 3.4" Height 15.5. cm / 6.1" Weight 258 gr   What's sustainable? Durable 18/8 Pro-Grade Stainless Steel construction BPA-Free and Phthalate-Free