Confused when finding the size

Equipment Uniforms
1

I’m starting off my uniform with the flight suit and tried to find a fitting size. I’m going for GBI uniform.

All the conversion charts mixed my head up totally. Could any of you US guys help me out?

My measurments are:

½ Chest Circle: 26,3"

Sleave Inseam: 22,44"

Leg inseam: 33,5"

Center Front Length: 34,6"

I var from 42L to 52L and I really don’t know.

2

Hey dude there is a whole thread about this. If you look in the uniform section, I believe its called “Buying a flight suit” there are size charts and tons of tips.