Finisterre (www.finisterreuk.com) has been perfecting its super lightweight (190gm) weatherproof Bise gilet for the past three years and it’s a smart versatile layering piece. By reducing the weight of its recycled outer shell, Finisterre has managed to make it one of the lightest and, in my experience, warmest gilets on the market. At the same time, all the key stress areas have been reinforced making it tougher and more durable. As the best synthetic fill retains 75% of its warmth when wet, the gilet has Primaloft Eco synthetic recycled insulation. It also has a 2-way zip, an adjustable cinch-pull hem, soft fleece-lined pockets and collar and packs away into its own pocket. It's been a real treasure on camping and travel trips taking up little space in luggage and weighing next to nothing.