Come and see our amazing products. Insulated metal water bottle is made of food grade 18/8 stainless steel to ensure pure taste and no flavor transfer. With the double walled insulation design, the reusable vacuum flask is sweat-free and could keep drinks cold for up to 24 hours and hot up to 12 hours. Pls confirm with us about the packing info, stock color and exact production time before placing your order.