唔...BRA個SIZE係計上胸圍同下胸圍,簡單D講,上胸圍同下胸圍之間差距就係個波既SIZE(A,B,C,D級....)* A4 f. P0 S4 N+ u, [) k6 t
A級:4寸,B級:5寸,C級:6寸,D級:7寸.....! K* s* Y0 Z8 a# e: ?" Z3 w* q% I
而男人黎講差距係0,3 k' D4 _' v/ o7 W! H6 v8 T
你話你30寸既話,你去買30*2.54=76.2~75,所以你去買75碼既BRA就得,75A,75B,75C都得(睇你要幾大既波)