ok so i dont know if sum of yall know wut gc2b or a binder i but plz someone who does please help me ok so my parents dont know im a trans guy. and my friend is buying me a bin der but i dont have the materials to get my size i think i'll be fine with a medium but i want to be sure can anyone help me find my size please. if u need a pic of me then lemme know i'll do anythin i just want to make sure i get the right size plz help