Get the sun and wind protection you need outdoors with the Fintech American Flag UV Fishing Mask, often called a neck gaiter. It offers enhanced comfort, fit, and feel. The ergonomic nose and back-of-head shaping creates the perfect fit for almost any head shape or size. The UPF+ polyester cooling fabric is designed to protect you from the elements when you're out on the water. Features: Made from 100% polyester. UPF 50+ sun protection. Ultra-cooling fabric. 4-way stretch material. Ergonomically built for a wide range of head shapes and sizes. One size fits most.