From 1939 to 1955, Canadian Lady marketed several lines of intimate apparel including girdles, panties, slips, swimsuits, and brassieres under the Wonderbra brand. The company also created sub-brands to target different socioeconomic and lifestyle segments of the consumer market. In contrast, the U.S. market for Wonder-Bra stagnated while the brand was owned by Israel Pilot's companies. In 1952, Canadian Lady launched Petal Burst with anticipation of tough negotiations with D'Amour—Israel Pilot's U.S. company—around the expiration of the patent in 1955. This new line also adapted to a new fashion trend towards a pointed bust, inspired by Christian Dior's "New Look". The Petal Burst by Wonderbra line was successful and delivered 50% of bra sales by 1957.