What roles do Octa and Axio play in fall/winter layering?

Choose the layer role before the material name. In 26/27FW, Axio 3D Hoody is a base-layer option; Global Octa Jacket uses Stretch Octa Bonding as active insulation; OCTA Fleece Tec Hoody is a lightweight fleece midlayer. They are not simply warmer-versus-colder substitutes. Match shells and stop-time insulation to exertion, wind, rain and time spent stationary. Adjust during starts, climbs and stops. The catalogue does not provide a universal temperature rating, and each model has its own construction.