The Xbox 360 Nike+ Kinect Training bundle will start selling at participating retailers for $249.99, Xbox's Larry Hryb announced today on the Major Nelson blog.

The bundle includes the console, a copy of Nike+ Kinect Training and a one-month subscription to Xbox Live Gold. The bundle will remain at $249.99 through Jan. 5, when it will return to its original price of $299.99.

Nike+ Kinect Training will be also be available for download through Xbox Live on Dec. 25. for 4,000 Microsoft Points ($50). The Fast and Focused: Upper Body and Core add-on pack will be available the following day for 400 Microsoft Points ($5), and integrates 15-minute workout personalized routines for upper body into players' Nike+ Kinect Training workout program.