Perfection Evolved. Version 2.0 of our premium ultralight has an improved fit that's more comfortable, mobile, and flattering, with more room in the chest; a slightly longer length for added coverage and warmth; a softer fabric to further enhance the comfort; and a secure drawcord hem to seal out cold and fine-tune the fit.As an ultralight insulating layer, the MicroTherm is thinner than traditional down jackets. But that combination of minimal bulk and effective warmth is what makes it special, and is the result of its patented construction and the exceptionally high-loft goose down that it holds close to the body for maximum thermal efficiency."The MicroTherm Hoodie is so light and compact, I can take it everywhere without even realizing it's there, yet I can rely on it to keep me comfortable and sheltered from the cold."Caroline George, Eddie Bauer Alpine Guide