In fashion, the concept of volume is becoming prominent with stores displaying an increasing number of wide sleeved jackets and shirts, swing jackets, trapeze coats, full/puff-ball skirts, and big collars and hats.  These modern shapes will take some getting used to and many may be put off by the idea of appearing shapeless.  The way to ease into this style is to combine a voluminous item with a lean one, to convey a more flattering silhouette. Try skinny bottoms with capes and wide sleeved tops, or fitted shirts with puff skirts.  If you want to do bulky for both the bottom and top, use a belt to pinch in the waist and avoid looking swamped.   Those not daring enough to plunge into the volume scene head first, can dip in slowly by accessorising with bulky bags.