Size M Worn a couple of times ( washed and ready to wear) Size M Worn a few times (washed and ready to wear) FIONx™ fabric with four-way stretch, moisture-wicking, anti-wrinkle and ridiculously soft properties Silvadur™ antimicrobial technology, which provides odor protection, inhibits the growth of bacteria, yeast, algae, and other microorganisms that cause odor and fabric damage