Long-sleeved drirelease Quarter-Zip offers enhanced neck protection and the ability to manage heat release. Tonal contrast stitching in our best-selling drirelease fabric. A patented, super-soft blend, drirelease is the optimum blend of wicking cotton fibers and fast drying polyester fibers. This gives the fabric superior moisture management performance that is totally natural, will never wash out, and is good for the life of the shirt. Polyester/cotton. Washable. Imported.