Marmot Better Mammoth GORE-TEX Vest - Better KhakiA style befitting top billing on the Marmot marque, the GORE TEX Vest is a capable and considered all rounder. Designed for principal use as an outer layer, its constructed from post consumer recycled polyester and GORE TEX membrane for complete waterproofness as well as superior breathability the GORE guarantee. 800 fill power down handles insulation duties, providing much needed warmth in baltic climes, which can be modulated with ease thanks to the