As they pass across the subcutaneous inguinal ring, they are connected together by delicate fibrous tissue, forming a fascia, called the intercrural fascia.
This intercrural fascia is continued down as a tubular prolongation around the spermatic cord and testis, and encloses them in a sheath; hence it is also called the external spermatic fascia.
The subcutaneous inguinal ring is seen as a distinct aperture only after the intercrural fascia has been removed.
Read more about this topic: Intercrural Fibres Of Superficial Inguinal Ring