The collar of this multi-functional flame retardant flight coverall belongs to the folding collar. It can be folded and the collar is not too low or too high, which can protect the neck of the user. Strong wind cannot enter the body from the collar. The opening and closing of the clothes adopts magic glue and zipper to avoid small items falling off, posing a threat to the pilot; Magic glue is used at the waist and cuffs to adjust the size according to your body shape. There are several zipper pockets on the flight suit, two breasts, two front thighs, and one arm, which can hold the essential things in flight; The bottom of the pants also has a zipper. We use relatively light weight fabrics to make the flight suit, which can reduce the burden on pilots and help them to perform tasks efficiently.