NWT Specialized Race-Series wind gilet, women’s Small, Hyperviz neon yellow, reflective wind vest, deflects wind and water, good for cool, windy or damp cycling weather, temperatures 45-60 degrees Fahrenheit. Mesh back, lightweight, packable vest with double-zip closure. 100% Recycled Polyester wind shell HyprViz color treatment increases your visibility to motorists. Back mesh panel allows for maximum ventilation as your body builds up heat and energy inside the jacket. Fabric Content: MAIN: 100% Polyester Woven; BACK: 82% Nylon, 18% Spandex Knit Mesh Lightweight fabric can be packed into your jersey pocket when it isn't needed. Protective front panels keep the wind from permeating Slim Fit, while still allowing room for a jersey or baselayer underneath.