Designed to keep you cool, calm, and collected during hot and humid conditions, the Simms Challenger Solar Crew Pebble Steel delivers UPF 30+ sun protection to safeguard anglers from harmful UV rays during those long summer days at the lake. Utilizing a lightweight and comfortable jersey knit material on the sleeves and front, the Challenger Solar Crew offers a functional stretch to accommodate the movements needed for a variety of outdoor activities. Made with a breathable jacquard fabric on the back and underarms to supply extra air ventilation and keep you cool when the weather's hot and sticky, the Challenger Solar Crew includes lycra tape neck seams for extra comfort in muggy conditions. Keeping anglers odor-free through HeiQ fresh sustainable odor control technology, the Simms Challenger Solar Crew Pebble Steel enhances your ability to stay outside and fish all day in hot summer weather. -Main body: 100% polyester; 135 gsm-Back body & underarm: 95% polyester / 5% elastane; 130gsm-HeiQ Fresh and HeiQ Stain Away finish-UPF 30+ protection