Lightweight, stretchy knit fabric with UPF 40 protection on the front for all-day comfort on the trailsRaglan sleevesInterior bungee loop on the collar for easy hanging upOverlapped vent under the arms, perforated side panels & ½ zip front for better airflowMaterial wicks sweat & dries really fastPerforated, stretch-woven fabric on the back & sides for added durability & breathability