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Burton System Jacket - Boys
The Burton Boys System Jacket delivers four options in one highly functional package. The System combines the protection of the most waterproof jacket in the youth line with a removable, zip-in component jacket. One side of the component liner is a water-resistant, wind-resistant nylon taffeta shell fabric that's tough enough to stand on its own. The reverse side is covered in warm and comfy fleece. In the midst of winter's grip, run the shell and component together to put an end to frozen limbs. When the weather becomes warm, wear either side of the component liner for the ultimate in versatility. An integrated CD pocket with controller window keeps the tunes fresh, so you're always fully charged on snow or off. Sick of having a wet butt for the long ride home? We added a water-resistant coating to the waist gaiter, so you need not worry about taking a break to contemplate your next trick off the park's rock-star kicker. -Vendor
$169.90 
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Training Tips
For runners looking to get the maximum benefit from hill training, as you sprint to the top of the hill have your arms pumping faster and faster. Once you get to the top, continue on increasing your speed as much as possible.
After each interval, take your pulse rate by counting the number of beats at your wrist or neck for 15 seconds. Multiply that result by four to get your beats per minute. Your next interval should start before your heart rate is less than 60% of your maximum.
The four components of good fitness include flexibility, muscular endurance, muscular strength, and cardiorespiratory endurance. For optimum health, include at least two of these groups in three workouts per week.
Your fitness level will improve by overloading, working your body hard enough to stimulate the body, progression, increasing the frequency, intensity, and duration of exercise over time, and regularity, working out frequently, at least three times a week.
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