Japanese retailer Uniqlo has opened its doors at Westfield Montgomery mall, filling the former Express space on the second level. The new store encompasses 12,000 square feet — about a third larger than the Pike & Rose location — allowing for a much bigger selection of sizes, colors and styles. Uniqlo, which carries clothes and accessories for men, women and kids, is fast-tracking its North American expansion with a goal of 200 U.S. locations by 2027.