Under Armour is already joining the handful of brands that have released performance monitoring gadgets, which is pretty impressive knowing that the third most popular sports brand in the nation is just eight years deep in the footwear game. Although many of the details surrounding the Armour39 have yet to be revealed, we can assume it includes a heart monitor as the commercial highlights the chest strap.

Endorsed by UFC's Georges St-Pierre and fitness trainer Natalie Uhling, UA means business with this power move into new categories. The official launch is coming this spring, but you can visit the Armour39 site now and enter your e-mail to be subscribed for updates and information.

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