Matthew Mathiasen

At Concept Los Angeles in West Hollywood, Matthew Mathiasen, a 2009 graduate of the Fashion Institute of Design and Merchandising whose fashion world CV includes stints at Elmer Ave. and Betsey Johnson, showed a collection that varied from sporty street wear -- shorts, skirts and zip-front crop tops layered under hoodies -- to glittery sequined sleeveless mini-dresses and a curve-hugging floor-length gown.