Our drirelease Quarter-Zip is a zipneck, long-sleeved T-shirt that offers enhanced neck protection and the ability to manage heat release. Tonal contrast stitching in our best-selling drirelease fabric. A patented, super-soft fabric, 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. Odor-blocking and eco-friendly OutSmart® Fresh helps keep you fresh even after long days on the stream or on the road. Active fit.