Vest of the vest. It's stretchy, lightweight, and wind and water-resistant. In other words, it's the kind of vest you'd bring home to your parents. Interlock: 92% recycled polyester/8% spandex. Ripstop: 100% recycled polyester. Stretchy interlock fabric with classic stripe details. Secure hidden pockets with snap closure. Wind and water-resistant-bring on the weather. Half zip silhouette for easy on, easy off. Made with 96% recycled materials-good for you, good for the Earth!