Brooks Brothers' 3 in 1 jacket can be worn as a jacket, as a jacket with interior vest lining, or as a vest alone. The vest is hooked into the outer jacket at the back neck and armhole, and features ultra light Thermore® Eco-Down fill.
Product Features
Jacket: full-zip and snap closure; snap collar
Vest: Waterproof; ultra light Thermore® Eco-Down fill