The Adventure Spec Baltic Insulated Jacket is an extra warm mid layer that packs down into a compact pocket sack. It features 130g Thermore thermal booster insulation that adapts to external temperatures. Water resistant shoulders and hood help deflect rain and the hood is removable providing a good fit when worn under a riding jacket. The Baltic Insulated Jacket is designed for riding into colder environments where you require warmer layers both on and off the bike. Weight - 641g.