Utility Post Bag Height: 27 cm / 10.6″ Width: 39 cm / 15.4″ Depth: 12 cm / 4.7″ Utility Post Bag is a mid-size messenger bag made in water-repellent nylon. Two large exterior front pockets give this bag its unique look inspired by military bags. Fitted with an array of handy pockets and compartments – this bag is ideal for the heavy packer as well as organised types.