spring 2011 flats kate spade mod cloth bc footwear betsey johnson sperry top sider jack rogers flats spring 2011

From top left, clockwise: "Lido" flat, $99, KateSpade.com. "Chasing down dreams" flats, $58.99, Modcloth.com. Limousine ballet flat, $44.55, RevolveClothing.com. "Tammie" crochet flat with bow, $79.95. BetseyJohnson.com. Lakeside slip-on, $98, SperryTopSider.com. Slim ballet flat, $198, JackRogers.com. Courtesy photos.

Just call it the Lanvin effect!

Flats were all over the Spring 2011 runways, noticeably so at the French house, where Alber Elbaz's mantra started a revolution of comfortable shoes for spring. After models at his runway show couldn't keep their balance in the towering heels provided, the designer had the girls switch to flats.

He said, "Damn it with image. You can be stubborn and go after an image, but I'm not an image-maker; I'm a dressmaker. If you don't feel good in something, you don't look good with it."

Even Arianna Huffington put her foot down revealing to Elle "my aspiration is to end my life entirely in flats. I feel so much more comfortable if I can walk around without being in pain." (The Media guru even went on the record admitting that her biggest fashion regret was a pair of brown suede Manolo Blahnik boots)

It's not news that flat shoes are better for your feet and are much more practical. But top designers -- Chanel, Giambattista Valli and Chloé to name a few -- encouraged a more comfortable gait this season, and we're sure the models appreciated the gesture!

So peruse our gallery of the the most comfortable flats for spring. Ranging from loafers to sling-backs, there's a style for everyone.