One Size: Designed for every outdoor activity, this functional vest is featured in a lightly insulated design and water-resistant fabrication with zippered pockets and adjustable straps. Features: Durable nylon fabrication with a water-resistant finish, lightweight and breathable, Primaloft insulation for a warm feel, zipper closure at center front and back, zippered chest pockets, pleated bellow pockets, fleece-lined hand pockets, wide adjustable shoulder straps Pit to pit 18.5" Length 21" but can get longer since straps are adjustable.