mjpratorwrote a review of Patagonia Nano Puff Bivy Insulated Pullover - Men's on October 13, 2017
Familiarity: I've used it several times
Love this as an outer layer over a lightweight fleece in camp,it is light and warm. Make sure you order a size up if this is your purpose. I am 5'11', 155#, and find large fits just right over the fleece.