MarlJohns Water Bottle Made from BPA-free, impact resistant and dishwasher durable Eastman Tritan copolyester With the switch, it is very convenient Integrated loop handle makes it easy to clip a carabiner or carry with the crook of a finger Ergonomic design is comfortable to grip; 33 ounce capacity Wide-mouth opening is easy to fill with ice and water and a breeze to clean