towing of a sled the tow strap 72 terminates in a carabiner 74 or other clip connecting device or locking device that may be clipped or connected to the strap loops 58 at the head or foot of the sled seen in fig6 the staff member or rescuer can then easily tow the sled by simply running against the harness as a sled dog does of course one of skill in the art will readily recognize that many other types of tow harnesses or tow strap extensions may be used to improve the ease of towing sledded evacuees in this way it has been found that a single nurse can relatively easily tow a 220 pound 100 kilogram sledded evacuee in most instances however in cases where the evacuee is heavier the rescuer s are weaker or just tired or more difficult terrain is encountered a second harness wearing individual can easily attach a second tow strap 72 to the strap loops 58 or the carabiner 74 to provide additional force as can be imagined a third or fourth towing person may be added as needed one situation where additional individuals for towing might be needed is in the case of patients needing intensive care and large amounts of equipment to ensure survival examples of patients requiring additional equipment for care include patients in intensive care units icus thoracic patients and shock trauma patients for some patients the equipment necessary to ensure survival may be bulkier.