Leak-proof and transparent drinking bottle for children. The Sigg drinking bottle is the ideal companion for all leisure activities and school. With the One Top, the bottle can be operated with one hand: this applies to carrying, opening, drinking, closing, and securing the bottle. Additionally, the drinking bottle is suitable for carbonated beverages. The wide opening helps with cleaning and filling the bottle. It is leak-proof, ensuring that the backpack stays dry even during rough activities. Made from high-quality polypropylene, the water bottle for children is transparent, making it easy to see how much liquid is left. The children's water bottle is recyclable, of course BPA-free, and contains no harmful substances, including phthalates or estrogen-active substances.