Styled for winter brewery outings, but functional for tackling deep days in the mountains, the L1 Brewin Jacket is as versatile as it gets. Strapped with 10K waterproofing, 60 grams of synthetic insulation, and fully taped seams, the L1 Brewin Jacket can certainly hold its own in the elements. Add in features like a powder skirt, jacket-to-pant interface, and underarm vents and you'll see why this street style bad boy is an instant favorite.