Nike Men's Dri-FIT Challenger 7 Inch 2-in-1 Running Shorts Black / Black Red Thin speed laces have a

Thin speed laces have a knit-in texture that helps keep knots more secure than traditional laces

The Junya Racer is an eight base frame that wraps close to the head for the highest level of visual clarity and protection at speed

continued falling blood sodium concentrations could lead to a dangerous condition known as hyponatremia

Ideal for 100m-400m sprinters

This allows for the 005 to be incredibly lightweight and responsive while remaining highly durable

Nike Men's Dri-FIT Challenger 7 Inch 2-in-1 Running Shorts Black / Black Red Thin speed laces have aDesigned for running, training and yoga, our sweat wicking Challenger Shorts keep it light and right with a relaxed over layer and tight under layer for support that helps you get the most out of your movement. We geared them for more than running, with a comfortable pocket that won't irritate when you move from the track to the gym. Stay Dry, Keep Cool Nike Dri FIT technology moves sweat away from your skin for quicker evaporation, helping you stay