After 40 years of research and tweaking based on your feedback, we've taken a good thing and made it better than ever. So, what's new and improved? We've updated the zippers and zipper pulls, made the pockets more accessible and added reflective features for enhanced visibility. It's built to stand up to any conditions: The waterproof nylon fabric is designed to shield you from wind, rain, sleet and snow. The "warmer" rated insulation keeps you cozy, and we especially love the longer length for extra warmth and protection. With all these weatherproof features, Squall® does it all.