Abstract: A full-body safety harness that is to be worn by a user, especially a user in a hostile environment. Which such full-body safety harness comprises a torso surrounding portion with a D-ring for attaching a life line, two vertical shoulder straps, four straps that affixes to a pair of pants, and two leg supporting straps that clip around the legs. All portions of this safety harness extend over a portion of a person's body to retain the person within the full-body safety harness. The straps of this full-body safety harness are fabricated from a flexible material having an elastic extension in the range of 10%-25% under a tension load of approximately 100 newton's. This percentage of stretch of this full-body safety harness is controlled by additional static material that is stitched onto the straps in a controlled loop pattern.