You know working out is good for you, but working out in a charitable tee? That’s double the goodness! Flywheel, a hot spin and barre destination that’s a favorite of stars like Sofia Vergara and Emmy Rossum, just launched two designer tanks, proceeds from which benefit the Memorial Sloan-Kettering Cancer Center. There’s a sleek black-and-pink top from Shoshanna (left) and a charming white top (adorned with a cute bike) by Charlotte Ronson; both are $48 and available at Flywheel locations in Atlanta, Boca Raton, Charlotte, Chicago, Miami, New York, Seattle and the Hamptons. We can’t make any promises, but they might make breaking a sweat this summer feel just a bit better.