The number at the beginning of 5 generally belongs to the size of men's wear, which is for those burly men. These numbers usually belong to European codes. Europeans are generally taller than Asians, so their shoes and clothes are usually larger than the standard size.
T-shirt 50 yards generally corresponds to L yards of standard yards/175 meters; T-shirt size 52 is XL size/180m; Then T-shirt size 54 corresponds to XXL size/185 meters, while T-shirt size 56 is specially tailored for those "giants" who are 190cm or even more than 2 meters.
General clothes size is:
After XL(50), the garment length is 68cm, the shoulder width is 47cm, and the bust 108cm.
XXL(52) is 70cm long, 48cm wide at the shoulder and 1 12cm in the chest circumference.
XXXL(54 years old) is 72 cm in length, 49 cm in shoulder width and 1 16 cm in bust.