TENANT TREND #3: ATHLEISURE

Lululemon athletica and Athleta, a subsidiary of Gap Inc., are not new concepts. But they are part of one of fashion’s hottest trends: “athleisure.”

Specializing in trendy activewear designed for the gym and beyond, athleisure concepts are finding their way into all kinds of shopping destinations — giving lululemon and Athleta increasing competition. Here’s a rundown of some other retailers currently in the game:

Fabletics: This formerly pure-play subsidiary of JustFab is best known for its co-founder and frontwoman, actress Kate Hudson, whose toned abs show off the trending athletic fashions to best advantage. New to brick-and-mortar, Fabletics is in the throes of opening its first slate of stores, located in select GGP malls.

Lululemon’s Ivivva: Lululemon looks to create its next generation of shoppers with Ivivva, a freestanding format that features fashionable athletic wear for girls aged 4 to 14.

Foot Locker’s SIX:02. Not a new concept — it was introduced by Foot Locker in late 2012 — SIX:02 is gaining a foothold among active, performance-minded women. It has 29 stores, and counting.

Dick’s Sporting Goods’ Chelsea Collective: The sporting goods giant unveiled Chelsea Collective in August, with two initial locations.

Sweaty Betty: The U.K.-based brand plans to expand its footprint in the United States, where it has five stores. — Katherine Boccaccio