The Insulated Gilet: comfortable in its looser fit and efficient Primaloft insulation. This gilet is ready for the darkest, coldest winter days. Originally invented for the US military, Primaloft uses unbreakable air pockets to trap heat even when soaking wet. The strategic upper-back apertures allow for both shoulder movement and breathability. The compact fleece with a soft brushed lining strategically used as side panelling provide structure and stretch. A two-way access pocket secured with zippers means snacks stay safely stored and easy to reach. The Insulated Gilet is durable and detail-oriented to make your most extreme adventures comfier.