Fabric: 92/8 poly/spandex; 100% polyester (Carbon Charcoal); 100% polyester undervisor Structure Structured Profile: Mid Features: Seam-sealed, quick-drying, 3-layer sweatband with sweat and stain-blocking technology, moisture-wicking, water-repellent, 4 die-cut vent eyelets, Permacurv bill to maintain proper shape and curve Closure: Stretch fit