The Arc’teryx Kyanite Hoody men's full-zip fleece hoodie is versatile and its stretch fleece provides exceptional warmth for shoulder-season conditions. This technical jacket is ideal for layering in a multilayer system or standalone piece for a wide range of outdoor activities. Here they are. The first layer, worn next-to-skin will provide warmth and quickly move moisture away from your skin. Then, the second layer, is the insulation and fleece, that provides warmth while also dissipating heat during periods of high output. And finally, the third layer, the shell, which is the most weather-protective layer, worn on the outside of all other layers.