In 1934, Colley was handed a new assignment: help pioneering pilot
Wiley Post reach the jet stream and break new altitude records. Post needed a pressurized suit, and Colley designed him one using his wife's sewing machine. The
pressure suit had three layers: the innermost one was long underwear, the middle layer was a rubberized air pressure bladder, and the outer layer was made of rubberized parachute fabric. Rubber boots, pigskin gloves, and a diver's helmet with a removable faceplate were added. Post tried the suit on September 5, 1935 and reached an altitude of 40,000 feet, an unofficial record. He eventually reached 47,000 feet in the suit. In the 1940s, Colley helped design the Goodrich XH-5 full-pressure suit for the U.S. Army Air Force, which was inspired by the segments of a tomato worm Colley observed in his garden. Colley and his collaborators were awarded a patent for this suit in 1946. Colley continued to develop full-pressure suits for the U.S. Navy during the 1940s and 1950s, and appeared as a guest on the TV program ''
What's My Line?'' in 1959. With Carl F. Effler and Donald D. Ewing, Colley led the design of the Goodrich space suits used by the Mercury astronauts, modified versions of the Navy Mark IV pressure suit. All six original Mercury astronauts went to Akron to be fitted by Colley for their suits, which were two-ply silver nylon coated with
neoprene. After Shepard's flight aboard
Freedom 7, the Akron press dubbed Colley "First Tailor of the
Space Age" and Goodrich saluted him as "Father of the Spacesuit". Colley also designed special gloves worn by
John Glenn, when he became the first American to orbit space in 1962. Glenn wanted the fingertips to light up so he could see his instrument panel, since lighting in the spaceship was sacrificed to keep the weight down. Glenn often floated around the spaceship using the fingertips for light, near the end of his 1962 orbit, he described his last few moments in space as a "lights out" experience, as the lights malfunctioned in his fingertips leaving him without any way to see. == Later life and hobbies and death==