This water bottle is made of durable, non-reactive stainless steel, rugged and built to last. The screw-on lid has an integrated carrying loop for easy transportation, and doesn’t leak when it’s closed, so the bottle can be tossed into a bag for worry-free travel. The spout also includes a cover so it stays clean when it’s not being used. Everything is BPA free and should be hand washed. Do not microwave.