Leak-proof drinking bottle with innovative One closure. The Sigg WMB One Pathfinder Black drinking bottle is the ideal companion for all leisure activities and travel. It impresses with functionality, design, and suitability for outdoor adventures. Its practical size fits in most bottle holders and the outer 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 aids in cleaning and filling the bottle. It is leak-proof—whether standing, lying down, or upside down. The drinking bottle is robust yet feather-light. The inner 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.