Pushing the boundaries of ultralight insulation, the Mont Women's Zero Down Jacket weighs just 210g and packs down into it's own small stuff sack — making it one of the most packable down jackets on the market. The secret is Anti-Gravity Nylon, the world's lightest downproof nylon, used inside and out, paired with 1000+ loft white goose down treated with DWR Loft for exceptional warmth retention even in damp conditions. An integrated stuff-sack pocket means you're always ready to pack it away in seconds. Zero Ultralight Down Jacket Features 1000+ loft white goose down fill with DWR Loft treatment for outstanding warmth-to-weight ratio Ultralight for negligible pack weight impact Packs into its own integrated stuff-sack pocket Elasticated cuffs to retain warmth and insulation Hem drawcord with single-hand toggles for a secure, adjustable fit Zippered hand warmer pockets for secure storage and warmth YKK front zip and pocket zips for long-term reliability Standard fitting cut for comfortable everyday and on-trail layering TECH SPECS Weight: 210g Insulation: 1000+ loft, premium RDS certified goose down Material: Anti-gravity ultralight nylon