The Patagonia Self Guided Sun Long-Sleeve Shirt is built for the long days when shade is scarce: a full sun day on the water, a shadeless ridgeline approach, or a desert canyon where the exposure starts at dawn. The stretch weave and wicking finish work together so the shirt moves freely on a full cast and doesn't sit wet against skin when the work rate climbs. What Our Gearhead® Experts Are Saying:"The stand-up collar folds flat when the sun is behind me and cinches up when it isn't, and the four pockets keep a fishing license, tippet, and a snack organized without a vest."