This is lightweight warmth for the cold seasons. When you want freedom of movement in your arms but need an extra layer of warmth for your body, choose the Women's Snug Prima Loft Gilet. Its Prima Loft Black Insulation Eco is not only warm, breathable & water resistant, it is made with recycled materials. Layer it over a base layer or under your jacket for warmth when active on the boat or in the hills.