Upon the two naked parts of his body, which were most likely to be discovered. As for his face, it is more than probable from his age, which was the same with Esau s, Genesis 26:34, that nature had given him a covering like Esau s.
Related Commentaries of Genesis 27:16
Genesis 27:16
16 And she put the skins of the kids of the goats upon his hands, and upon the smooth of his neck: