Table 1 Definition of the terms

Jackets used in the evaluations

 Initial fitting jacket

The initial fitting jacket is the specially designed clothing used to investigate the preferred fit of the subjects in the 1st ease allowance evaluation. It uses the graded sizing chart similar to the ready-to-wear

 Custom-made jacket

The custom-made jacket is the modified clothing from the initial fitting jacket, and it used to investigate the preferred fit of the subjects in the 2nd ease allowance evaluation. The correction details collected in the initial fitting process were fully reflected to the patterns of custom-made jackets to achieve better fit

Calculated body size variables

 Chest–waist circumference

“Chest–waist circumference” is the difference between the chest circumference and waist circumference of the human body. It can be calculated by the formula below: chest circumference measured on the body − waist circumference measured on the body

 Chest–hip circumference

“Chest–hip circumference” is the difference between the chest circumference and hip circumference of the human body. It can be calculated by the formula below: chest circumference measured on the body − hip circumference measured on the body

Calculated jacket size variables

 Chest–waist circumference on the jacket

“Chest–waist circumference on the jacket” is the difference between the chest circumference and waist circumference of the jacket. It can be calculated by the formula below: chest circumference measured on the jacket − waist circumference measured on the jacket

 Chest–hip circumference on the jacket

“Chest–hip circumference on the jacket” is the difference between the chest circumference and hip circumference of the jacket. It can be calculated by the formula below: chest circumference measured on the jacket − hip circumference measured on the jacket