The Heyes Peak Hooded Jacket wears as a complete, standalone layer for mixed weather and daily wear, no shell required. The NetPlus recycled nylon shell is made from recycled fishing nets, and 80-gram Thermore EVOdown insulation, made from recycled PET bottles, holds in warmth without adding bulk under a coat or on its own. What Our Gearhead(R) Experts Are Saying:"I wear this straight through a day that starts cold and warms up by afternoon, and I never reach for a shell over it unless the rain actually starts."