A sustainable reimagining of Sierra Designs best-selling insulated jacket for the coldest of days, the Womens Sierra is an essential winter staple to keep your spirits stoked on below-freezing days. Ultra-cozy and responsibly sourced 800-fill DriDown is treated with a hydrophobic finish, helping to retain downs natural insulating properties and fluffy loft, staying dry 10x times longer, even in wet weather. Plus, a high collar, elastic cuffs, and a cinch cord on the hem seal out the elements for functional, stormproof warmth. The result is an intuitive winter jacket for cold weather motivation, not hibernation.