The Stainless Steel Insulated Water Bottle is a sleek vacuum sealed bottle that will keep drinks cold for 24 hours, or hot for 12 hours. The lid is completely stainless steel too, meaning that the water doesnt come into contact with any plastic. The artificial leather acts as a carry loop as well as providing a lovely design detail. The spout is extra wide, making it much easier to add ice cubes or a charcoal filter to the bottle. It also ensures easy cleaning. The steel rim has an inside thread for an optimum drinking experience. 100% leakproof Thread on inside of lid for smooth drinking High quality stainless steel Vegan leather strap attached to lid BPA free About Black+Blum Black+Blum are award-winning producers of original, sustainable products that people love to use every day and are proud to own. They endeavour to create objects of enduring value and practicality that age well and are built to last. Dan Black and Martin Blum are passionate about sustainability and doing their part to protect the environment. They have an eclectic taste and this shows through the varying aesthetics of their individual products. They design in-house but also collaborate with the most talented designers worldwide to bring the finest lunch boxes and water bottles to the market. The Stainless Steel Insulated Water Bottle is a sleek vacuum sealed bottle that will keep drinks cold for 24 hours, or hot for 12 hours.