The outer layer is about as protective as you can get without sacrificing breathability, being fully waterproof and resistant to light rain and spray. Made of Gore-Tex InfiniumWindstopper® 150, it is punctuated by a large, covered vent on the upper back and a smaller vent in a zipped pocket on the front, to let heat and moisture escape, so that you won't end up with that boil-in-the-bag feel.This durable outer is reinforced by reduced seaming and seam sealed shoulders, to combat potential leaks, a substantial raw-edge waist with silicone grippers that lies flat and seals out wind, pockets with drain holes and double-layered cuffs that fit around your gloves to make them impermeable to the elements.The inner, meanwhile, is constructed from incredibly cosy Polartec® Alpha Direct insulation. Soft and furry, it lines the sleeves and the back of the jacket, then forms a separate vest-style front that can be zipped or unzipped.When the day is relatively warm, but you need a bit of protecti