Havaianas -- makers of classic flip-flops -- has asked celebrity makeup gurus Trish McEvoy, Laura Mercier and Bobbi Brown to design special-edition flip-flops for this summer. The styles are really cute (check them out above) and perfect for the beach, and all proceeds benefit charity: water, which works to bring safe drinking water to impoverished communities.

They're being sold during the month of June at Saks Fifth Avenue.