Small lingerie company became a dominant force in the sexy Halloween costume business

Amy Tsai is Leg Avenue’s chief merchandising officer.

(Irfan Khan / Los Angeles Times)

Oct. 30, 2015 6:20 PM PT

Winter Rosewood is a costume designer at Leg Avenue in the City of Industry.

(Irfan Khan / Los Angeles Times)

Domonique Battle is a costume designer at Leg Avenue, which also makes lingerie and hosiery.

(Irfan Khan / Los Angeles Times)

Susie Arias scans merchandise for shipping in Leg Avenue’s 90,000-square-foot facility.

(Irfan Khan / Los Angeles Times)