Being jammed in confined spaces for hours is an unfortunate part of the business for many professionals. Whether it's a military unit in an a.p.c., a pilot in a cockpit, drivers in a HumVee, or a journalist in the back of a goat truck, they all have to bring their gear and they all may need to relocate in a hurry. This is the environment for which the Evac line of sling packs has been geared. They are slim shaped to be easily manoeuvred in crowds, or stored in vehicles/lockers, and are quick to take on or off. They are also ambidextrous, and unlike others in this class, are actually comfortable on the shoulder. The bottom strap clips from either the right or left lower corner and the padded section realigns itself ergonomically in the correct body- hugging direction. The bag can be rotated to the chest for on-the-go access, and all pockets are designed to face the user in this mode on either the right or left side.