Material: stainless steel. This sports water bottle is made of food grade 304 stainless steel. Non-toxic, shockproof and shatter proof, rust and leak proof as well as resistant to scratches. Better than plastic or glass water bottles. Keeps your water, coffee or tea hot or cold. Double wall vacuum insulated technology design make it keep hot up to 6 hours or keep cold up to 24 hours. Best enjoyed cool and fresh in hot summer especially. Big mouth to fit ice cubes, easy to clean, fill, and drink from. 500ml easy and comfortable in hand and drink. Large enough helps you to keep hydrated during outdoors. Put your sports water bottle in your gym bag, backpack or briefcase as your daily companion. Can also fit in most auto cup holders. The vacuum seal cover is designed to prevent spillage of the beverage; the bottle mouth is narrow and is used for inserting ice cubes for easy drinking. Features team crest on front. Official licenced product. Ref: UTBS1721