How often can you look good and feel good for less than $25. Check out these fun tee's from Tonic They're cool and , each one benefits a very specific charitable effort. From endangered coral reefs to putting shoes on children in Haiti to giving mosquito nets to families in malaria ridden sub-Sahara Africa, these are all great causes. Tonic sends an average of 40% of the revenue from each purchase into the corresponding charity, so you know your money is actually going somewhere besides a slogan-riding-manufacturer's pocket. You pick where it goes when you pick your shirt. The colors and designs are trendy, with four of the eight created by designer Luella. Even better, the shirts, made of a bamboo-cotton mix, come in men's and women's sizes. I'm a curvy person, so I always appreciate a shirt that goes in where I go in, and out where I go out, you know? Pick your favorite -- design or cause -- at www.tonic.com. Here are our picks:

Each One Net Tee sale buys three mosquito nets for families in sub-Sahara Africa. Partner Against Malaria helps make this possible.

The Sun Tote proceeds help preserve a ¼ acre of reef in the Pacific Ocean, safeguarding habitat for thousands of marine species like sea turtles, dugongs and the chambered nautilus.

This shirt helps Water 1st International provide access to clean water for drinking, cooking, washing and cleaning, and build sustainable water systems in Bangladesh and Honduras.

The sale of each Robin Tee brings a pair of shoes to a child in Haiti through Friends of Paradis des Indiens.