Jeniffu Stainless Steel Water Bottle - 41 OZ. is made of high-quality stainless steel material, with a double-wall insulating vacuum insulation layer, and the overall materials used in the water cup are food-grade, BPA-free safe materials. Any drink that is hot, like coffee, can stay hot for up to 8 hours, cooler drinks can stay cold for up to 16 hours. Designed with a screw-on lid to spill-resistant and carrying handle to easily carry. Wide mouth design for convenient add ice and cleaning. Perfect size for daily use. Rush 3 days available with rush charge upon request. Imprint drinkware only can be handwash. BPA FREE, FDA certified