This was the US military escape evasion pilot survival vest sru-21/p. This was for the US Air Force. Should not be confused with the Navy vest. This was developed not early Vietnam: towards the end. This vest was used until the’90s and may have been seen commonly in the’80s like top gun. This vest has been heavily modified, including modifications that may or may not have been done at the Air Force Base sew shops. The vest is missing the PRC-90 pilot survival radio. The vest is also missing. The pen flare and the pilot survival knife but pilots may not have always carried that it includes the holster instead. Sewn holster for the Smith& Wesson victory model or 1911 Colt 45.