Nike MLB Hypercool Pinstripe Top - Men'sEmbrace the premium look of pinstripes in the Nike MLB Dri-FIT® HyperCool Pinstripe Top. This team-centric top is sure to be a fan favorite! Mesh panels at the sides, underarms, and back provide ventilation to keep you cool when the game heats up. 100% Dri-Fit polyester. Imported.