Columbia ™ T-shirts (Mountain Tech™) have the word Tech in their name for a reason

• 100% polyester fabric wicks away moisture
• Antimicrobial to control odor in garment
• UPF 15 rating minimizes sun damage
• Flat stitch seam construction
• Tagless neck label

Omni-Dry ® Mountain Tech ™ Columbia T-shirts are made for the person who isn't afraid to sweat to get the job done right. Columbia T-shirts are unlike traditional cotton T-shirts because they are made of a 100% polyester fabric which is designed to wick away moisture and dry quickly. Technical because these Columbia T-shirts are antimicrobial which reduces the odor in the garment caused by everyday perspiration. Technical because they have a UPF 15 rating that minimizes the damage done by the sun's harmful UV rays. Flat stitch seam construction and tagless neck label provide all-day comfort. Imported. Specify color and Men's chest size: S (35-38), M (38-41), L (42-45), XL (46-49) or 2XL (50-53) from the selection box above. See drop down for colors and sizes currently available.