Men's Flex 9 Challenger Running Short Color:BINARY BLUE/BLACK These adaptive training plans feature

These adaptive training plans feature guidance from expert coaches and free training plans that adapt to you and your goals

immediately

Made with a comfortable knit fabric

Get heart rate data4 along with alerts if your heart rate stays too high or too low while you’re at rest

and strategic stretch and support with a Hypoknit upper

Men's Flex 9 Challenger Running Short Color:BINARY BLUE/BLACK These adaptive training plans featureThe Nike Flex 9 Printed Running Short Mens are designed with sweat wicking fabric and built in briefs for comfort and support from start to finish. Elastic waist with interior drawstring provides a secure fit. Secure zip pocket at right rear. Mesh panels increase ventilation and cooling. Regular fit is eased, but not sloppy, and perfect for any activity.