From the manufacturer

Boys' UA Stunt 3.0 Shorts

These shorts are light, stretchy, and they dry really fast. When you've got these on, you can go right ahead and go all out.

• Smooth, lightweight, fast-drying fabric for superior performance
• Material wicks sweat & dries really fast
• Mesh back panel for added ventilation
• Encased elastic waistband with internal drawcord
• Open hand pockets