You’ll see my MLB clients wearing them the next time you turn on ESPN’s Baseball Tonight. Genius idea. Simple product. Amazing results! The ThrowTech Sports™ pitching shirts are a no-brainer. There’s so many products on the market designed to strengthen and protect the arm. However, there’s only one that actually allows you to pitch without getting in the way. Best of all, these right and left handed shirts not only conform to the throwing arm and shoulder as a compression sleeve but serve double- duty by acting as climate gear to help protect your throwing side.