For searing sun and biting bugs lightweight SunSleeve(TM) packs UPF50 protection and proven Insect ShieldA(R) technology. Simms&&';; BugStopperA(R) SunSleeve(TM) ensures superior protection from sun and biting bugs thanks to UPF50 SolarFlexA(R) stretch fabric with Insect ShieldA(R) Technology. Slide in while wearing short-sleeve shirts and source ultimate comfort via lightweight, quick-dry, breathable construction. Elastic at the biceps bolsters fit. Curved articulation at the cuffs enhances hand coverage. And pairing snaps simplify storage. SPF 50+ sun protection Combats sun while wearing short-sleeve shirts Quick dry, breathable stretch fabric with pairing snaps at bicep for storage Elastic at bicep, curved at cuff for better hand coverage while fishing Pairing snaps at bicep for storage 17" length FABRIC TECH: UPF50 SolarFlexA(R) stretch fabric with Insect ShieldA(R) Technology APPROX. WEIGHT: 3.2 oz SIZES: S/M, L/XL