Gisele Bündchen Confirms She's Retiring From the Runway

After 20 years, the model reveals why she can't do it anymore.

— -- Gisele Bündchen is ready to quit walking down the runway.

Today, she is walking for Colcci in Brazil for São Paulo Fashion Week. She made her debut back in 1996 during New York Fashion Week.

The most famous model in the world, 34, also spoke to the Folha de Sao Paulo newspaper over the weekend and said "my body tells me if what I do is worth it, and it asked to stop."

"Stopping will leave room for other projects I have for myself," she added. "It's not retirement, [I] will keep working, just not on the catwalk."

Bündchen will still model for print.