The Rotera 15oz was made for all day hydration. It is perfect for kids ages 7 , lunch boxes, road trips, and any parent on-the-go. We set out on a mission to create the perfect water bottle, and we did just that. So, what makes it different? The TwistSip straw lid offers on-demand sanitary sips, our signature ColdKey stainless steel straw prevents plastic from sitting in your water all day, our BevGuard technology keeps ice for 24 hours and the swappable soft-touch sleeve makes this the most durable and customizable insulated bottle ever.