Colourful Kids Bottle – With its sweet butterflies and hearts pattern, the SIGG children's water bottle is perfect for school, the playground and more. One-handed Operation – The innovative and secure ONE closure makes it easy to carry, open, drink, close and secure the reusable water bottle with just one hand. High Quality Material – The drinking bottle for children is made of transparent polypropylene. This way you can see how much liquid is still in the bottle. Safe Drinking – The materials in the plastic bottle are recyclable. They are free of BPA and pollutants such as oestrogen-active substances and phthalates. Product Details – SIGG children's bottle made of polypropylene, light weight bottle with one-handed closure, free of harmful substances and BPA, made in Switzerland