Mountain Warehouse Pace 20L Backpack. Embark on your next great outdoor adventure with this charming Mountain Warehouse Pace 20L Backpack, designed for explorers seeking both style and reliability on the trail. Constructed entirely from durable 100 percent polyester with a water repellent finish, this versatile daypack features an air flow back system, adjustable chest and hip straps, multiple convenient pockets, bungee cords, compression straps, and a handy pack away rain cover. Ref: UTMW5967