These are great to wear under basketball or track shorts!  

Tough, lightweight HeatGear® fabric, with all the performance benefits of UA Compression
Stretch-mesh gusset & inseam panels deliver strategic ventilation
Updated ergonomic design keeps seams off high abrasion areas & increases durability
4-way stretch construction moves better in every direction
Material wicks sweat & dries really fast
Anti-odor technology prevents the growth of odor-causing microbes
Wider, 2" Engineered elastic waistband
Inseam: 9"