If you think sweater vests are just for prep-school types, think again. From traditional v-neck styles to shrunken lace-up versions, the sweater vest is a must-have for Fall 2006's layered looks. Go conservative by wearing one over a white dress shirt, or mix it up a bit with a flowing blouse or billowy t-shirt underneath. Plus, a sweater vest is warm—but not too warm—so it's a great piece for transitioning into fall. Here are some great sweater-vest styles at both designer and non-designer prices.

J. Crew Dream Argyle Vest, $68, available here.

Beth Bowley Aran Cable Vest, $110, available here.

Robert Rodriguez Crop Cable Vest, $308, available here.

Majorette Sweater Vest, $148, available here.

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Nanette Lepore Secret Garden Vest, $195, available here.

Charlotte Ronson Vest with Pom Pom Tie, $145, available here.

Gap Sleeveless Deep V-Neck Sweater, $38, available here.

Mossimo Red Mini Stripe Sweater Vest, $14.99, available here.