What's a young fashionista who doesn't want to look too frivolous to wear these days? Helmut Lang made a fascinating suggestion in his fall 2001 collection. The dress, which he did in long and short, black and white, and with and without the "holster" (the leather band around the shoulder and ribs), manages to be both austere and sexy and serious and glamorous. Clearly it's a look that will be most appreciated, as all Lang's garments are, by the fashion cognoscenti, but it's also one that any reasonably confident woman (with great triceps) could wear.