Craft Sportswear Men's Featherlight Bike Cycling Training Wind Protective and Water Repellant Reflective Vest: protective/riding/cooling/coat/outerwear 91% Polyester/9% Elastane Imported 360 degrees reflective details for optimal visibility Ultra-lightweight woven polyester fabric in front, 37 gsm Wind-protective and water-repellent fabric at front Elastic mesh at back for enhanced ventilation and an optimal fit Durable water repellent (DWR) finish