The Huk work pursuit long sleeve shirt is packed with Huk performance technology to handle the elements on the water this lightweight crew neck shirt with mesh vented sides is an ideal layer on cooler days and perfect worn by itself when its hot. Huk added the most advanced sun-blocking +50 UPF materials to their apparel to block both UVA and UVB rays. Huk added a special stain release treatment that not only enables stains to be easily washed out but also resists oily substances from attaching to the garment in the first place.