The Women's Mythic G is Rab's lightest, most packable down jacket, and as such you can pack it for any cold weather adventure. It features down insulation with the highest fill ratings that Rab can make. 1000-fill down insulation ensures the best warmth-to-weight ratio money can buy, meaning it's incredibly warm for how little it weighs. A thermal-reflective lining enhances warmth even more by bouncing body heat back your way. The ultralight shell packs small, and it's still treated with DWR for water resistance.