An incredibly light, warm, and highly compressible vest that is easy to wear over a t-shirt, sweater, or shell jacket. The vest has a high collar and a detachable hood, both filled with the fantastic Primaloft padding. The vest is filled with 80 grams of Primaloft® Black padding, which is extremely efficient at keeping you warm when needed. It is windproof and insulates even when wet, thanks to the Primaloft insulation.