via tonic.com

This summer is going to be all about the eco-chic clothing. The model and philanthropist Petra Nemcova has been seen sporting Tonic Tees before and already has her eye on the new collection. Scarlett Johansson, America Ferrara, Rachel Bilson and Catherine Zeta Jones are also Tonic Tee lovers.

Tonic.com, the e-commerce site, has launched a limited edition line of eco-friendly t-shirts designed by Donna Karan and Urban Zen. Besides being chic, comfy and eye catching these tees actually do so much more than make you look good. Say hello to guilt free shopping!

The collection benefits four global causes supported by The Urban Zen and Tonic Foundations. 20 percent of every sale goes to charity --ten percent from each organization. Additionally, each shirt features a distinctive call to action—you can wear your cause on your sleeve.

Check out the shirts on tonic.com—maybe think about getting mom one for Mother’s Day (just a reminder--it’s this Sunday!) And after mother’s day, don’t forget about making your prom eco-chic too! Tell us what you think about the Tees below!