An adaptable layer you’ll find you never leave behind. Its reversible nature means you can wear a windproof outer to keep chilly breezes at bay, or wear that fabric next to your baselayer and have a more permeable outer that enhances breathability when you’re working hard. Versatile warmth without bulk, or unnecessary weight. When you know you should take an insulated piece with you, but worry about weight or bulk, there’s no need to hesitate when the garment is this light.