Reversible and lightweight. Measurements lying flat: 18.5 inches across lower armpit. 23.5 inch from top shoulder to waist. Outer has two zip pockets. Inner has two pockets. Last two photos are from the official website. From the Cotopaxi website: Made from recycled polyester and repurposed taffeta, the Cálido Hooded Vest doesn’t just bring the heat—it brings the sustainability, too. This versatile, fully-reversible staple style is packable and comes in creative color combos.