Nwot The Men's SITKA Jetstream Vest is designed to keep your core warm from the relentless wind and cold temperatures. Made from GORE WINDSTOPPER fabric, the SITKA Jetstream Vest is 100% windproof for protection, while the durable water repellent finish sheds light precipitation to keep you dry. With the zippered chest and hand pockets, you're able to securely store your small essentials for maximum convenience. Now featuring an updated relaxed fit, the SITKA Jetstream Vest is perfect for layering.