This Week in Fashion rounds up the week's style news, store openings and closings, pop-up shops, sales and upcoming fashion and design events in Toronto. Find it here every Wednesday morning.

NEWS

Mature preps, this is your cue to celebrate, for J.Crew opens in Eaton Centre today! Their signature rich colours and cashmere sweaters have arrived just in time for the impending cold weather. This large new location found on the third floor next to Indigo - unlike the J.Crew at Yorkdale - houses a men's section.

Tomorrow (October 4), Topshop and Topman are set to open their massive, new, and much-anticipated flagship stores on the second and third floors of The Bay on Queen St. As a special promotion, customers who spend more than $75 will receive an exclusive printed tote with a pouch for women, or a hat for men. Plus, the six-piece Louise Gray for Topshop collection will be launching at the same time.

EVENTS/PARTIES

Tonight (October 3) from 6 pm until 10 pm, Toronto Business Casual is hosting a "Fall Wine & Fashion Social," pairing expert fashion advice with complimentary free-flowing Oyster Bay wine - two things, that in a perfect world, would always be presented at the same time. Michelle Reiff, a stylist and wardrobe expert, will be offerings her tips on dressing "swanky" in the workplace while guests enjoy Merlot and Chardonnay in the beautiful !XAM Diamonds gallery (366 Bay St). Purchase your tickets ($40 + tax) through the Toronto Business Casual website.

Spend Saturday (October 6) from 11 am to 4 pm perusing everything that select local vendors have to offer at the Thanksgiving Weekend Edition of the Mavrik Mrkt. The Antique Appetite, Knead Bakery, Darcy's Li'lustrations, and more will be calling Mavrik Wine Bar home for the day, so get your homemade treats and crafts while they're all in one place.

The most stylish group bicycle ride in Toronto to date - The Windsor Tweed Run - is happening for the first time ever on Sunday (October 7). Meet the rest of the gang at noon at the Jubilee Parkette (Wyandotte St E and Kildare) decked out in traditional British cycling attire. Scones and tea from Thyme To Go will be available for purchase, but the event itself is free! RSVP on the Facebook event page.

SALES

From Thursday (October 4) through to the very last day of the long weekend (October 8), you can get a brand new pair of Pumas - and the clothes to match - at discount prices during their warehouse sale. The event is so huge it had to be moved to a much larger building than in previous years - the International Centre (6900 Airport Rd, Hall 6) - so it's almost guaranteed you'll find what you're looking for, whether it's mens, women's, or children's clothing, shoes, and accessories. Find out more through the Style Democracy website.

Also starting on Thursday (October 4) - but only up until Sunday (October 7) - is The Sample Sale Guys' Thanksgiving Designer Clothing Sale, held at Le Parc in Thornhill (8432 Leslie St & Hwy 7). The thrifty fashionista's favourite will, as usual, carry a wide selection of men's and women's fall 2012 collections at up to 80% off. Don't miss your chance at that Mackage leather jacket or Rag & Bone sweater you've been eyeing since the spring! Find out more through the Style Democracy website.

Lead photo courtesy of J.Crew