cnbc's tanya breyer has the 2016 event. she's been make being some new friends. >> reporter: men's fashion is predicted to become a whopping half a trillion dollar industry by 2019. i'm at the xcm showcase event in london to find out what's driving this rapid growth. join us after the break. the flu virus hits big. with aches, chills, and fever, there's no such thing as a little flu. and it needs a big solution: an antiviral. so when the flu hits, call your doctor right away and up the ante with antiviral tamiflu. prescription tamiflu is an antiviral that attacks the flu virus at its source and helps stop it from spreading in the body. tamiflu is fda approved to treat the flu in people two weeks of age and older whose flu symptoms started within the last two days. before taking tamiflu, tell your doctor if you're pregnant, nursing, have serious health conditions, or take other medicines. if you develop an allergic reaction, a severe rash, or signs of unusual behavior, stop taking tamiflu and call your doctor immediately. ch