Enjoy ultimate flexibility: Meet Rio, the very first insulated tumbler with a telescopic straw. This colorful 950 ml (32 oz) leakproof tumbler keeps your smoothies, milkshakes, or other drinks cool for up to 24 hours. Drink straight from the spout or use the convenient straw. Don't feel like using a straw? No problem, it's cleverly integrated. Simply slide it down, and you're good to go. Rio is made of double-walled, vacuum-insulated 18/8 stainless steel for superior quality. Plus, it's BPA-free, so you can drink safely and hygienically. For easy cleaning, simply place your Rio in the dishwasher.