Patagonia LS Sol Patrol II Shirt.The LS Sol shirt is made from a lightweight and quick drying polyester with 30 UPF sun protection (awesome). Cooling mesh fabric is found to the centre, back and sides to allow for ventilation and is receptive to any breeze. To the chest, two buttoned pockets are found, along with an extra sneaky zipped pocket to the inset of the left. At the collar, snap buttons are used to hold it down in place, or alternatively worn up to keep the sun off your neck.The Sol Patrol shirt is made with bluesign® approved fabric - based in Switzerland they work at each step in the textile supply chain. The aim is to offer extremely high quality goods which have minimal effect on the environment and people.bluesign® approved fabric.Lightweight and quick drying polyester with 30 UPF sun protection.Mesh fabric to centre, back and sides.Two chest with 1 zipped pocket.Button cuffs.Snap button collar.Relaxed fit.