Leak-proof drinking bottle with innovative One closure. The Sigg drinking bottle WMB One Pathfinder Black is the perfect companion for all leisure activities and travel. It impresses with its functionality, design, and suitability for outdoor adventures. Its practical size fits in most bottle holders as well as in the external pockets of backpacks. With the One Top closure, the water 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 facilitates cleaning and filling the bottle. It is leak-proof - whether standing, lying down, or upside down. The drinking bottle is robust yet lightweight. The interior coating ensures a neutral smell and taste of the beverage. The adult and children's drinking bottle is made from food-safe materials and contains no harmful substances, including phthalates or estrogen-active substances. All Sigg bottles are produced responsibly with the aim of reducing the use of single-use bottles.