Private equity firm Monomoy Capital Partners, L.P., parent company of Boston Apparel Group, has acquired direct-to-consumer women’s apparel retailer Casual Living USA. 52% of Casual Living’s sales are through its direct-mail catalogs and 48% come from via its web site.

Terms of the deal were not disclosed.

Monomoy plans to move Casual Living’s fulfillment, marketing, merchandising, and sourcing operations into Boston Apparel’s existing infrastructure in Massachusetts. It will also move the company’s headquarters from Tampa, Fla. to West Bridgewater, Mass.

The deal marks Boston Apparel’s first acquisition since Monomoy bought the company in 2008.

Over the past 18 months, we have built an industry-leading cost structure, management team and product offering at Boston Apparel, says Nathan Richey, Monomoy vice president. Boston Apparel is now perfectly positioned to acquire additional brands and products that leverage its existing infrastructure and provide its customers with more choices and better value.