We kept our Matagorda Shirt clean and focused on what is most important, like a simple pocket configuration so you won't have to go hunting for your gear even when it's close at hand, a button-down collar to keep everything calm when the wind gets angry, roll-up sleeve tabs and a vented rear yoke for air flow. Constructed of light and quick drying nylon-poly blend with engineered stretch, the Matagorda is the perfect companion for travel whether you are strapping on a backpack, running a boat or riding your beach cruiser.Specs Quick drying 52% nylon, 48% polyester Mechanical stretch for better range of motion Hidden pocket with contrasting zipper pull under front right yoke Vented back yoke Hidden button down collar Roll-up sleeve tab at upper arm Sunglass cleaning microfiber at hem UPF 35+ sun protection Regular fit