This Water bottle is designed to make staying hydrated and maintaning a healthy life style easy. A double walled, vaccum insulated body is make of 18/8 stainless steel which isulates cold drinks for up to 24 hours and hot for up to 6 hours. Perfect seal technology ensures that the lid is leak proof. Perfect for smoothies, water or any other hot or cold refreshement. This product is dishwasher safe and BPA free for peace of mind.