While last winter saw military style jackets and capes, this year the big designers focused on six styles for winter warmth. Classic trench coats adapt to fall and spring wear, year after year. Cozy shearling and fluffed-up puffers are being seen everywhere. On the synthetic side, vinyl and faux fur stretch the imagination. For sporty style and functionality, chic ski wear is seen on the streets just as often as on the slopes.