Milton's Steel Marble water bottle is designed especially for young kids with an insulated stainless steel interior to keep their drinks hot or cold for hours. Use for storing hot water up to 40°C temperature. Filling the drink to full capacity ensures maximum temperature retention. This Bottle is unique in shape, it has leak proof technology, which make this bottle easy to carry at school, office, gym, hiking, treking, travelling. When it comes to drinking fresh and clean water during travelling, it is best way to carry water from home to avoid any contamination. The best way to remind yourself to drink water is to carry a bottle with you. It not only keeps the water clean but also retains temperature for hours. Hence carry hot water for a day's journey during winter and simple cold water during summer to refresh yourself while travelling.