Styles from the new On Top and In Control collection from Spanx are meant to be worn alone. Photos courtesy of Spanx

If you don't leave home without your Spanx as underwear, just wait 'til you check out the shapewear line's new collection of outerwear.

On Top and In Control, which launches on tomorrow, features a collection of tops meant to be worn alone or as layering pieces.

"I was inspired to make classic tops women can wear every day with invisible shaping built inside," Spanx founder Sara Blakely tells StyleList.

"Made from the yummiest yarns we could find, On Top and In Control comfortably contours your shape and looks great with everything from pencil skirts and heels to jeans and flats.

"As a new mom on the go, I'm all for anything that easily and comfortably gives me extra control and added style."

The line's nine styles -- including a three-quarter-sleeve bateau, and long-sleeve and sleeveless V-necks, crewnecks, turtlenecks, and tanks -- will come in neutrals such as black, gold, and white, with more colors being added for fall. Prices range from $68 to $118, and pieces will ship June 14.

"On Top has a luxurious, matte finish with a hint of shine," the Spanx catalog says. "Don't let the softness fool you -- these tops have hidden shaping zones that will contour your body into a beautiful silhouette."

Founder Sara Blakely launched Spanx in 2000 with footless pantyhose, and the line soon grew to include everything from control-top fishnets to body shapers to maternity hose to swimwear to compression undershirts for men.

With that extra help sucking things in, go ahead and swap that nonfat milk for whole in your Frappuccino -- and then check out more new shapewear trends for 2010. In fact, we'll take whipped cream with that!