The ideal piece of field equipment for the working professional. Designed for a lifetime of service for general field use to carry books, maps, tools, samples, etc. Undivided inside dimensions are 12″ x 10″ x 3 1/2″ when expanded. Fully adjustable shoulder strap has glove-leather lined, wool filled pad and includes a belt strap with snap hook to keep bag from swinging. Available with or without heavy leather hammer holster installed on front panel.