A flight suit comprising: a torso portion defining two arm openings (26, 34); two shoulder portions that are effective for at least partially covering shoulder joint areas of a pilot, the shoulder portions being extensible, comprising each opposing first and second edges (198, 200), and being each coupled to a different arm opening of the torso portion by means of their respective first edge, the two shoulder portions comprising each a stretch fabric that is extensible by at least 45 % in a weft direction and by less than 45 % in a warp direction, the weft direction being generally transverse to their respective first and second edges (198, 200), the shoulder portions being each in a non-stretched state when the pilot is in a sitting position; two sleeves (180, 188) coupled each to a different shoulder portion by means of the second edge of their respective shoulder portion, each sleeve (180, 188) optionally comprising an extensible elbow panel; characterised in that the flight suit further comprises: a lower portion comprising an extensible crotch panel and two leg portions (408, 416), each leg portion (408, 416) comprising an extensible inner panel effective for covering an inner region of each leg of the pilot, the inner region extending from the ankle up to at least one fifth of the height of the tibia of the pilot, said extensible inner panels comprising each a stretch fabric that is extensible by at least 45 % in a weft direction and by less than 45 % in a warp direction, the weft direction being generally transverse to a longitudinal axis defined by each of the leg portions (408, 416). a torso portion defining two arm openings (26, 34); two shoulder portions that are effective for at least partially covering shoulder joint areas of a pilot, the shoulder portions being extensible, comprising each opposing first and second edges (198, 200), and being each coupled to a different arm opening of the torso portion by means of their respective first edge, the two shoulder portions comprising each a stretch fabric that is extensible by at least 45 % in a weft direction and by less than 45 % in a warp direction, the weft direction being generally transverse to their respective first and second edges (198, 200), the shoulder portions being each in a non-stretched state when the pilot is in a sitting position; two sleeves (180, 188) coupled each to a different shoulder portion by means of the second edge of their respective shoulder portion, each sleeve (180, 188) optionally comprising an extensible elbow panel; characterised in that the flight suit further comprises: a lower portion comprising an extensible crotch panel and two leg portions (408, 416), each leg portion (408, 416) comprising an extensible inner panel effective for covering an inner region of each leg of the pilot, the inner region extending from the ankle up to at least one fifth of the height of the tibia of the pilot, said extensible inner panels comprising each a stretch fabric that is extensible by at least 45 % in a weft direction and by less than 45 % in a warp direction, the weft direction being generally transverse to a longitudinal axis defined by each of the leg portions (408, 416).