Simms BugStopper SunGaiter Some days, when the fish are biting, so are the bugs. On these blazing hot, buggy days, the BugStopper SunGaiter is sweet relief. Powered by InsectShield UPF 50 SolarFlex stretch fabric, this lightweight, breathable gaiter protects your face from the bites and sunburn. A longer cape improves skin coverage at the neckline, and a taller fit allows it to fit up and over a cap. 92% Polyester; 8% Spandex. Imported.