Birddogs Boom Gym Shorts Color: Blue Orange Size Large Good Pre Owned Condition, light wear Small flaw, last photo See Photos for Condition Birddogs are designed with your package in mind, offering a built-in liner on all their shorts and pants that free men from having to wear underwear. Plus, with features like a phone pouch and, finally, a ball pouch, you won’t be left readjusting yourself at the gym all the time.