There are provided flight suits that can be useful for helicopter pilots, airplane pilots, glider pilots etc. Pilots of such vessels have particular needs in terms of equipment and flight suits. The flight suits of the present disclosure allow, for example, for providing pilots with flight suits that are comfortable when worn in a sitting position. Moreover, these flight suits do not unduly restrict movement of the limbs when the pilot carries out various actions such as taking hold of headphones and reaching for the aircraft dashboard. For example, the flight suits can comprise a torso portion defining two arm openings; two shoulder portions that are extensible, each coupled to a different arm opening of the torso; two sleeves coupled each to a different shoulder portion, each sleeve optionally comprising an extensible elbow panel; and a lower portion comprising an extensible crotch portion and two leg portions.