STY28387FA15 Jacket, down, and liner can be worn separately. Patagonia Men's Tres 3-in-1 Parka Gray Men's S (M size) Down Jacket The shell and liner jacket are removable, allowing you to change your style according to the climate and weather. It has a durable water-repellent finish and a waterproof/breathable barrier, making it highly functional. The liner jacket uses goose down, providing excellent cold protection. With a simple yet luxurious look, it's designed to be versatile with various outfits. It's a perfect parka, without a flaw.