MILAN — Moncler is investing in its retail chain in the U.S. with the opening this month of stores in Los Angeles and Miami.

The company already has units in New York, Chicago and Aspen, Colo., and is carried by top multibrand and department stores.

“In this important phase of expanding Moncler’s distribution, opening the stores in Los Angeles and Miami bears witness to our commitment to increasing the direct retail network in the U.S.A.,” said Remo Ruffini, president and creative director. “With the opening of the Los Angeles and Miami stores, both cosmopolitan cities, Moncler also continues to significantly enhance its visibility and international image.”

The new U.S. stores were designed by a longtime Moncler collaborator, architects Patrick Gilles and Dorothée Boissier of Gilles & Boissier.

The 1,188-square-foot Los Angeles unit is located on Rodeo Drive and embellished with French woodwork engraved with floral patterns in relief. The Miami boutique is in the Bal Harbour Shops complex and carries the Moncler men’s, women’s and accessories ranges, Moncler S and Moncler Grenoble. The Los Angeles unit carries those collections as well as Moncler Gamme Rouge, designed by Giambattista Valli, and Moncler Gamme Bleu, designed by Thom Browne.

In 2011, the Moncler Group reported sales of 513.4 million euros, or $713.6 million at average exchange, compared with 428.7 million euros, or $565.8 million, in 2010.

Moncler is currently sold in 34 countries in the world, with retail accounting for about 50 percent of the company’s overall volume. The outerwear firm opened its first freestanding store only six years ago. Today, there are 79 Moncler stores, including the five units in the U.S.

Moncler turns 60 this year and to mark the anniversary of the brand, founded in 1952 by Grenoble, France-based René Ramillon, it will hold a special event on Sept. 29 in Paris during fashion week.

The company sold a 48 percent majority stake to Paris-based investment firm Eurazeo in June 2011. Ruffini retained a 32 percent holding, while The Carlyle Group now owns 17.8 percent.