Our new Prowesse™ is seamless done better. Fits well, stays up, and never bites, binds or pinches. Designed to our demanding specs and designed to fit a woman's real body. Baselayer, midlayer, fitted long sleeve, it does it all. And, thanks to some nifty StinkStopper™ technology, it (and we) smell fresh as a daisy from start to finish. Thumbholes. By Title Nine. XS(2), S(4-6), M(8-10), L(12-14), XL(16).