Fashion Sexiest Summer Dresses Under $100 By InStyle Editors InStyle Editors Facebook Instagram Twitter Our editors and writers comprise decades of expertise across the beauty, fashion, lifestyle and wellness spaces in print and digital. We prioritize journalistic integrity, factual accuracy, and also having fun with every story we share. InStyle's editorial guidelines Updated on September 11, 2012 @ 01:59PM Pin Share Tweet Email Trending Videos Photo: Courtesy Photo Sexiest Summer Dresses Under $100 01 of 09 Sexiest Summer Dresses Under $100 Courtesy Photos (3) What's hot for summer? That depends on your definition of sexy. From contoured colorblocking options to waist-whittling peplums, this season's styles offer something for everyone. Find your most flattering silhouette and shop the look with our favorite affordable finds. 02 of 09 Contoured Colorblocking Courtesy Photo Viscose, Mango, $80; mango.com. 03 of 09 Contoured Colorblocking Courtesy Photo Polyester, Miss Selfridge, $74; missselfridge.com. 04 of 09 Cutouts Courtesy Photo Polyester, Topshop, $56; at Topshop. 05 of 09 Cutout Courtesy Photo Cotton, Oasis, $70; oasis-stores.com. 06 of 09 Maxidress Courtesy Photo Polyester, Dorothy Perkins, $49; dorothyperkins.com. 07 of 09 Maxidress Courtesy Photo Viscose, Warehouse, $85; warehouse.com. 08 of 09 Peplum Courtesy Photo Viscose, River Island, $65; riverisland.com. 09 of 09 Peplum Courtesy Photo Polyester, Topshop, $96; topshop.com.