I visited T.J. Maxx's outdoorsy sibling Sierra, one of the fastest-growing brands in the retailer's family

I wasn't sure what to expect the first time I visited Sierra, but now I'm hooked.

Dominick Reuter/Business Insider

• Sierra is TJX's outdoor lifestyle brand, selling apparel, gear, home goods, and pet products.
• It's still relatively small, but TJX said the chain could grow to 325 locations.
• Business Insider visited a store for a closer look at T.J. Maxx's younger, sportier sibling.

Shopping for outdoor lifestyle stuff is normally a quick way to burn a lot of cash.