Bottle Stainless Steel Adventure Bus Lässig. For thirsty adventurers and world explorers: LÄSSIG’s robust stainless steel drinking bottle from the Children's Adventure Collection is unbreakable, leak-proof and is suitable for still beverages and cool drinks. The bottle comes with two different drinking closures: The practical screw cap with stainless steel clip makes it easy to carry or fasten, while the sports cap makes it easy for children to drink on their own. With a capacity of 500 ml thirsty adventures are well prepared. The trendy Adventure design of the Children’s Drinking Bottle comes either in dusky pink with a tipi, or in blue with a bus.