There are plenty of shirts that can protect you from the sun, but the NRS Baja Sun Shirt is designed specifically to protect you from the sun while you fish from your kayak. It's a niche to be sure, but definitely one that has needed to be filled. This shirt features synthetic material that wicks away sweat and is rated to UPF 50, so it definitely can help defend you from the sun's harmful rays, but also has angler specific features. The integrated neck gaiter protects your face and neck from the sun and the reflection off the water while perforations allow you to release moisture around your mouth and nose without fogging up your sunglasses. The Baja eliminates shoulder and underarm seams so your PFD won't chafe as you cast, and it has a relaxed fit that stretches as you move to ensure you can row, paddle, or cast comfortably.