The picture is a little out of focus. Its hard to tell but from what I can somewhat see, you've got either a deficiency or a pest problem. I can't make out the background leaves very well but there's a lot of spotting on the leaves? Mites? or calcium deficiency? Maybe a better picture would help a little more?Never seen hairs do that before. That's a strange one.
From what I can see in that picture the bud looks fine to me, but all your leaf tips are brown which is a pretty good indicator of nute burn. Rhe spots on the leaves dont really look like mite spots (granted I can't see them very well) but look more like a nute issue.
Ok, now I have a better idea. Its probably normal maturity but you might be lacking in the light department. That may be why the buds look like they do. Plants look pretty good overall though
you have any air flows coming in your room ,any fans to close to that side of the plant .? I had a few buds on one particular plant one time which was accidently to close to an in coming air vent ,that made the hairs browner than the others .
you don't spray your buds do you ? .