LYNX Packable Down Jacket Men Warm and comfortable down jacket from Lynx. Perfect as a light jacket for cool and dry weather, or as a very warm mid-layer. Microfleece and spandex at ventilation openings under the arms. Insulation made of Primaloft down blend with high compression. Tailored sleeves. Polyester shell. Easy to pack down and takes up little space in its own storage pocket.