modular, lightweight and cut to fit over a broad section of layers and body shapes, v91 is j91 in vest form. primaloft® insulation and windstopper® shell make it formidable as both a component piece or a jacket on its own. it is specifically designed to layer underneath wide fit shells, but can compress down to be worn under straight fit shells. Can also be worn over top of profile fit items. modular insulation and lots of zippers. primaloft® insulation is regulates comfort levels during intense activity while offering uncompromising performance in all conditions. combined with 2 layer gore windstopper®, the results are incredibly soft, warm, light, and protective.  2l gore windstopper shell fabric 78% polyester / 22%  polytetrafluorethylen primaloft®  black rise insulation (170g/m²) 100% polyester   v91-ws acronym v91-ws padded vest (gray)