Helly hansen hh active flow 12 zip ls tophhactive is an advanced construction combining lifa stay dry technology and fast wicking fibers making it ideal as an all year activity baselayer staying dry is important in order to stay comfortable in addition this shirt is constructed with a relaxed fit making it just as great to wear as a casual piece featureslifaflow technologylifa stay dry technologypolyester exteriorflat lock stitches12 zip chest construction130gmbuyhelly hansen cloth