Carter Kostler

The Define Bottle was invented by 14 year old Carter Kostler who wanted to create a healthy alternative to sugary drinks. The Define Bottle is an ultra modern fruit infused water bottle for active and healthy people to take on the go.



The Define Bottle came into existence when 13-year-old Carter saw a solution to a problem. Every day, Carter would watch his mother cut up fruits and put them in a large pitcher, add water and place it in the refrigerator. The entire family enjoyed drinking fruit infused water while they were at home. However, when the family left the house they would either grab a soda, juice box or plain water in a non-sustainable bottle. This made Carter think how he could make fresh fruit infused water portable so people with an active lifestyle would have a healthy, sustainable way to hydrate while on the go. He made some sketches and pitched the idea to his family who fully supported the idea. These first sketches along with the help of an industrial design team based in Los Angeles, CA, were later developed into the beautifully crafted Define Bottle Classic and Define Bottle Sport.



The Define Bottle was proudly debuted at the 2013 Clinton Foundation Health Matters Conference where 550 bottles were donated for attendees to receive. Carter is a proud supporter of The Alliance for a Healthier Generation’s Childhood Obesity Initiative and will donate a portion of proceeds to this cause.