New and Improved Fems with “Fit to Body Technology” is specially designed to fit every body, providing flexibility, better fit and comfort for longer periods of time. Fems Superior Heavy Flow Wings is extra long and extra slim and comes with a multi-porous top sheet which enables rapid absorption and minimizes resurfacing, leak control lines to minimize leakage and soft wings for extra protection. Fems is dermatologically approved to be safe on your skin.