Small enough to fit in a lunch box without taking all the food room. kids will love the colors and design. Stain resistant and taste free Tritan 100% BPA, BPS and BPF free. Stem and straw are easy to remove for cleaning, top rack dishwasher safe (top rack only). Not for children under 3 years. This CamelBak water bottle it's designed specially for little hands. The simplified straw is easy and intuitive for kids to use.