Fox Racing - Tecbase Fire Long Sleeve ShirtWarmup with the thermal base layer shirt The Tecbase Fire Long Sleeve Tee keeps you warm on and off the bike. It's made from an ultrasoft, flexible material that provides all day comfort. With a close to the body fit, it's an ideal layering piece under motocross or mountain bike jerseys but can be worn as a stand alone shirt at the gym or on workout sessions. The 4 way stretch fabrication ensures you have a true range of motion during all athletic