The flattering new Erin-2 now features longer back length to cover more of you in lush brushed back spandex fabric. This shirt wicks, insulates, and stretches 4 ways. The smooth outer finish sheds hay, dirt, shaving, and hair. The Erin-2 features 14% Spandex, flat seams, and a newly styled stand-up collar for maximum comfort. Thumb holes keep your sleeves in place, even under your other layers.