Women's retailer Chico's has inked an endorsement deal with Debbie Phelps, mother of US swim sensation Michael Phelps - who won eight gold medals at this summer's Beijing 2008 Olympics.

The US chain approached Phelps about the partnership after she was documented as a shopper at Chico's boutique in Towson, Maryland at the height of Phelps-mania last month.

"I am thrilled to partner with Chico's," she said. "This relationship couldn't be more perfect; I've been one of Chico's biggest fans for years. Every time I have a function or go to an International competition for Michael, I build my outfits using Chico's Travelers, print tops and jewelry. I love Chico's because it's versatile, comfortable, perfect for travel and I always look and feel great. My daughters have even become Chico's fans!"