LONG SLEEVE STORMTECH H2X/DRY PERFORMANCE SHIRTS WITH NEW HPSC LOGO. The shirts are made of STORMTECH H2X/DRY performance technology which provides athletes with lightweight, non-chemically treated garments that stop perspiration from compromising technology. Tiny filament fibers embedded within the yarn at the inner layer next to your skin, absorb moisture and transfer it away from your body. The outer layer continues to pull the moisture away, up to the surface of the garment where it quickly evaporates. The result is a drier, more comfortable workout! Made of 95% Polyester/5% Spandex Colour: Navy Melange (Navy/Gray) NOTE: The shirts are a snug fit, so you may want to go up one size from your normal.