The Outdoor Research Women's Helium II Waterproof Vest is a lightweight and packable sleeveless activewear vest. Made with Pertex Shield+ fabric, this vest offers excellent waterproof and windproof protection. The fully seam-taped construction ensures maximum durability and performance. With its minimalist design and slim fit, this vest is perfect for layering over your favorite activewear. Whether you're hiking, cycling, or traveling, the Helium II Vest is a reliable and stylish choice for any outdoor adventure.