The Outdoor Stainless Steel Vacuum Flask 800ml Sports Water Bottle is made of high-grade stainless steel(i.e 304 Stainless Steel) the same as the one used in water dispenser tank to assure you that it is ergonomically & hygienically Designed. The water bottle can be unscrewed at the top (in order to drink or pour)and upper midsection( in order to clean, fill up, or pour). There is a safety handle/hook that will give you an easy strong grip on the bottle, which is also easy to carry and/or hooked to your bag or luggage. Enjoy hot or cold water in this safe and elegant Vacuum water bottle. Order it today at Jamboshop and have it delivered to your doorstep.