Prepare for the long-haul with the Oasis Stainless Steel Double Wall Insulated "Challenger" Bottle W/ Screw Cap. Drinks remain cool for up to 12 hours, without condensation building on the exterior.Made from quality 18/8 grade stainless steel inside and out, this Oasis Challenger is highly-resistant to rust, is odourless, BPA-free, and built to last a lifetime.Convenient and portable; the Challenger features a tight-fitting, fast-pour screw-cap spout. Perfect for your fast-paced lifestyle all year round, from the sporting field, to the office, or worksite, this stylish and reusable drink bottle also offers an eco-friendly alternative to plastic bottles. 550ml Capacity. 18/8 Stainless steel. Double wall vacuum insulated. Stays cold for up to 12 hours. Features fast-pour screw-cap spout. Durable powdercoat finish. BPA-free. Measures approx. 23cm height x 7cm diameter Handwash with hot, soapy water before and between uses and air dry.