Mass St. Chic columnist Caitlin Donnelly sets her sights on New York City, where Spring Fashion Week ended Friday. Today and next week, she’ll offer her take on the trends and versatile looks from America’s hottest designers.

Charlotte Ronson:

Although Charlotte Ronson’s collection is anything but couture, I do love her incredibly wearable style. Ronson’s Fall 2009 collection is all about rock and roll, stonewash and grunge. To hone her style, mix florals with studded belts and biker jackets or worn-out plaids with leather leggings. Just when I thought I was sick of the plaid invasion, she designed a diverse ensemble with an old pattern that truly keeps on keeping on.

Final note — over-the-knee, studded boots truly can be worn with anything, from fancy frocks to edgy, skinny jeans.

Miss Sixty:

To wear Miss Sixty, a lot of confidence is required. The Fall 2009 offerings are bold, perfect for those with a quirky style or a daredevil attitude: ’80s acid-wash jeans, printed leggings and jacket patterns that resemble magazine ads sewn together. And that’s not all — faux fur, leopard print jersey and corset-belts came all jumbled on top! Despite these wild outfits and their visual effect as a whole, when worn sparingly Miss Sixty’s fall pieces may be just the right medicine to complete an utterly boring outfit. Lesson learned? Don’t destroy your unique wardrobe finds by wearing them all at once: Use Miss Sixty sparingly.

Nicole Miller:

Nicole Miller’s show screamed New York City. She is known for her flattering, structured dresses in monochromatic, timeless colors like black, grey, red and blue; however, Miller stepped up her design by adding unique textures, patterns and details to her garments. Geometric patterns filled the fronts of minidresses, and a modern-bondage look came through on her black dresses with deep red, crisscross shoulder straps. Pieces designed by Nicole Miller span age groups; an 18 year old could wear one of her funky dresses, along with a hot 38 year-old mom.

Jill Stuart:

The concept of strong women — capable and female — truly inspired Jill Stuart’s 2009 Fall collection. The classic combination of black and white worn by models at the beginning of her show almost seemed to set boundaries — as if to say, “Ladies, here is your forever outfit, but right now you can play.” Models then wore dresses and color, flowers and lace, leather jackets and sweaters. Some of the outfits worn on the runway were transferred to streetwear by the simple addition of a more downtown blazer or a great pair of boots.

Alexander Wang:

Alexander Wang’s Fall 2009 collection is hot, plain and simple. His wardrobe staple? Super-sleek black leggings. Most pieces in his collection were little black dresses, black blazers, black tops — but with pizazz. Pieces held the female form, yet included details: draped fabric, studded shoulders, cut outs and unique sleeves. Everything is beautifully tailored. Pieces could easily be layered with his broad-shouldered jackets and, of course, his black leggings, short or long.

William Rast:

Justin Timberlake, Trace Ayala, and Macella and Johan Lindeberg all pooled together for the Fall 2009 William Rast collection; still, with all those creative minds, the show was received as a bit of a dud. At first, as I looked through the slideshow I thought, “cute,” and OK, “wearable,” and then … “boring.” But I did recognize the importance of owning some time-tested, always-in-style, key wardrobe pieces that usually save you from fashion disasters — they certainly saved William Rast. For example, for men, a great plaid shirt and a leather jacket stands out almost everywhere.

Too much? Eighties shoulder pads in everything — even T-shirts!