A staple of Flylow’s women’s line since 2014, the Billie Coat is an ideal option for backcountry shredders or those who simply prefer a shell they can layer underneath. Intuitive fabric—Flylow’s proprietary three-layer, waterproof, breathable hard-shell rated at 20K/20K—is the star of the Billie Coat film. Add co-stars like a DWR finish, fully taped seams and YKK waterproof zips and the jacket is going to take home the award for best water defense this season. Additional backcountry benefits include underarm vents, pack-friendly pockets, a helmet-compatible hood, slimmed down cuffs for reduced bulk and a mighty light overall weight of 590 grams.