US fashion brand Guess Inc has appointed Hillary Super as senior vice president and general merchandise manager.

As the lead merchant at Guess, Super will be responsible for product categories and will report to CEO and co-founder Paul Marciano.

Super "understands the Guess brand and values, and will lead a team of talented merchants", Marciano said. 

"Her relentless focus on brand integrity, execution, and on the customers has allowed her to grow great businesses, and her accomplishments as a leader are exemplary," he added. 

Super previously spent six years in senior merchant roles at American Eagle and four years at specialty clothing retailer Gap Inc, where she oversaw multiple brands and product categories.