These long-sleeve t-shirts are made of 100% Cool Max Extreme polyester by DuPont. They keep you cool when it’s hot and warm when it’s cool. Great for under your suit or leather jacket in the summer time. Or layer it with other stuff in the winter to help keep you warm. Cool Max Extreme has superior moisture management properties and dries faster than other similar fabrics. It’s proven to reduce skin temperature and to lower the heart rate.

Available in black or white. Sizes S – XXL.