King's Bighorn Shirt Jacket is a lightly insulated jacket for cool fall and spring weather. Sort of a shirt, not quite a jacket, the in-betweener you'll need for chopping firewood or hiking the fall trails. The 80g of synthetic insulation adds that extra bit of toasty oomph to make it through the chill. 80g Synthetic Insulation Point collar Chest flap-patch pocket; side welt pockets King's Logo Hem and Center Back Wind & Water Resistant Protection 100% Nylon Fabric Weight: 13.6 oz. (Size M)