Extend the fishing season as long as possible in the Simms Guide Insulated Shirt. Plush Primaloft insulation in the sleeves provides cozy warmth when the temperatures are dropping but the fish are still biting. The moisture wicking flannel button up is easy to layer under on especially chilly mornings or can be worn alone when the sun comes out. UPF 50 allows only 1/50th of the suns rays to pass through the shift meaning that your skin has exceptional protection from UV rays when out on the water. The tailored fit with a longer tail allows for long casts and comfortable oar pulls so you can focus on your fishing instead of the shirt pinching your arms.