On Monday, January 15, 2018 at 8:36:40 AM UTC-8, Roy B. wrote:
Does anybody know a source for the inflatable lumbar bladder (with hose & pump bulb) that goes in some parachute packs - like the old Security 150s?
ROY

Contact butler parachutes. They also have a temper foam pas for just below chute that makes the entire rig comfortable for hours in the cockpit.