Fortech Speed 2-Way Bottle 800ml All-season対応, 2-way bottle In summer, use the direct-drink spout for quick hydration. One-touch lid with a lock function for easy opening and closing. In winter, enjoy warm drinks slowly with the push-button spout & cup. Wide-mouth type: Wide-mouth inner container for easy addition of large ice cubes. Durable stainless steel double-wall construction suitable for heat retention and cold insulation, preventing heat from escaping.