Jislain is from L'Acadie, Quebec. He has done a lot of work for clothing campaigns. Jislain has played a leading role for fashion's top clients including Banana Republic, Vince Camuto, Bloomingdales, Macys, Bergdorf Goodman, Ermenegildo Zegna, J-Brand, Tiffany & Co. , Nivea, Fossil, Zegna Sport, Ralph Lauren , Mc Gregor Fashion Group, Florentino, Emiliano Zegna, Brioni, Cortelfiel, Esprit, McNeal, Grigio Perla and many others... Jislain Duval is renowned internationally for the quality of his modeling, and has undertaken extensive international assignments. 

He is represented by major model management companies all over the world. His mother agency is B&M in Toronto. In Montreal he works with Folio. While in the states he uses Wilhelmina, in Paris it's New Madison, in Italy it's Fashion Models and the list goes on and on.