"Fortessa proudly presents our line of outdoor friendly drinkware, Sole. This line is the Sole of sophisticated outdoor sipping. Made of shatter-resistant crystal-clear premium Eastman Tritan Copolyester, the industry standard for shatter-resistant drinkware. This outdoor-friendly collection is ready for poolside and patio dining and your friends and family will swear that it is made of glass! Available in 7 colors for fun all year round to really spark your next outdoor (or indoor) event!