This vest is lightweight and compact, so you can easily fit it in your jersey pocket when you don’t need it. But when the weather changes, you’ll be glad to have it. It’s made from an elastic windproof membrane that covers the front, shoulders, and side panels. This material shields you from wind chill and light water spray. The back is made from a breathable polyester fabric that lets excess heat escape.
The 2 Way YKK zip lets you access your jersey pockets or adjust your ventilation without creating the ballooning effect behind your shoulders on the bike.

The vest can also optionally be made with back pockets, so you can store your essentials without reaching under the vest.