Genesis 25:27 (KJV):
“And the boys grew: and Esau was a cunning hunter, a man of the field; and Jacob was a plain man, dwelling in tents.” In a few other versions of the bible, like the HCB and WEB, quiet is used.
If you look into the original language, you’ll see that the more accurate word is tam; to be complete, perfect, or blameless(H8538). The same word in meaning as described of Job in Job 1:1 (WEB):
“1 There was a man in the land of Uz, whose name was Job. That man was blameless and upright, and one who feared God, and turned away from evil.”
Note the word tam is from the root word tamam(H8552) which describes a sense of being finished. When YHWH made Jacob, he was built with both physical and spiritual capacities, the spiritual is what completed him, Esau had the physical capacities but lacked the spiritual. This is why YHWH allowed Jacob to supplant Esau twice in birthright and blessing, because Esau lacked the spiritual capacities of understanding and wisdom.
For the sake of comparison, Esau was the same type of hunter as a Nimrod was as described in Genesis 10:9 (WEB) but without the renown:
9 He was a mighty hunter before YHWH. Therefore it is said, “like Nimrod, a mighty hunter before YHWH”.
So in clarification, this passage provides a context of character rather than a description of appearance leading from Genesis 25:25 and 26.