The best kept secret in fitness training?

I'm hardly the first person to discover the TRX Suspension Trainer from Fitness Anywhere, but the more I work with it—and learn about it—the more I wonder why it isn't better known.

Yes, it's been featured on The Biggest Loser. And yes, the Super Bowl-winning Pittsburgh Steelers train with it. (See what Steeler trainer Marcel Pastoor has to say about it above.)

But you won't TRX gear in your local sporting goods store (at least not here in Pittsburgh). Fortunately, they have an excellent web store (and very prompt service). And the quality of the instructional materials that accompany the equipment is second to none.

I love the fact that you can throw the whole thing into an overnight bag and never have to worry about whether or not your hotel has a fitness center. And you can enjoy exercising outside when the weather's nice (try doing that with your Bowflex).

If you're looking to get or stay in shape, I think it's one of the best investments you can make.

Have a look.