By Arlene Getz NEW YORK (Reuters) – Sheer fabrics, backless dresses, draped pants, slit skirts and pastel gowns were the dominant look as designers presented their spring 2015 collections in New York on Friday. Taiwanese-Canadian designer Jason Wu, a favorite of First Lady Michelle Obama, featured navy blue solids mixed with greens in shimmery fabrics for a look that was all about beauty and women and sportswear at his downtown Manhattan show. “This collection was about celebrating women and also the new age of American sportswear,” he said about the show, inspired by the “impeccable style” of British actress Charlotte Rampling, best known for her performance in the Nazi-themed 1974 film “The Night Porter.” Along with flowing evening dresses in blacks, whites and umber, Wu, 31, also introduced the calf-leather “Diane” shoulder bag, named for his friend and muse, actress and former model Diane Kruger. Just hours before the show, attended by Anna Winter, Conde Nast’s artistic director and former editor-in-chief of Vogue magazine, Wu announced that he had sold a majority stake in his brand to InterLuxe, a new fashion platform chaired by his long-term friend Gary Wassner.