The Airyala 600ml Stainless Steel Water Bottle water bottle is an absolute bestseller. The bottle is made of Eastman Tritan, which means it is BPA free, light, durable and impact resistant. The bottle is single walled, holds ml of liquid, and the stainless steel twist on lid ensures easy opening and closing. Besides all, the Airyala 600ml Stainless Steel Water Bottle bottle offers enough space for adding any wanted logo or other messages.