Gore Wear's C5 Light Cap is an ultralight and breathable cycling cap that will keep the sun out of your eyes on warm days, while working to move sweat away from your scalp for temperature regulation. This fashionable piece looks great on its own or tucked under your helmet. Features: Designed for warm weather Engineered for Cycling Lightweight Packable Reflective details Elastic back for maximum comfort and fit Specifications: Weight: 1.1 ounces Main Fabric: 86% Polyester / 14% Elastane