Great vest, had it for a few years but I’ve lost some weight and it’s a bit big on me now. Super durable and warm. From website - Whether you're looking for a little extra warmth over a long-sleeved layer or under a jacket, our Men's Smartloft 120 Vest is ready to help keep you warm this winter. 120g proprietary 50% recycled wool insulation is lofty, lightweight, packable, and breathable. A wind-resistant nylon exterior with DWR coating helps protect you from the elements, no matter if you're wearing this as an outer layer or as an extra layer under your jacket.