The Marmot Isotherm Jacket is one of 2017’s lesser known jackets. Trying to capatalize on Patagonia’s Nano Air success, Marmot has updated the Isotherm to be even more breathable and utilizing the Angel Wing design, it offers a better range of movement than before. They also decided the Isotherm Hoody should no longer be a hoody. Go figure! Marmot Isotherm Jacket Pros Excellent Warmth Decent wind resistance Roomy fit Highly compressable Lightweight Cons Less breathable than my patagonia nano air…

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