Knitlord Men's Bamboo Underwear Soft Lightweight Low Rise Brief 3 Pack (M)

Q: Do these sag in the rear? they look like they have a lot of material and might be saggy

For some reason the model is wearing a size way you large. These do not sag in the rear if you have a full butt. Full or muscular. I’d go a size down if you’re in doubt. I wear M most the time but S is really flattering on my rear. Hope this helps.

Q: My husband likes 100% cotton. How breathable are these?

I only wear cotton underwear. I can't stand having anything artificial next to my skin. And even though I can't attest to the breathability of this underwear, I can tell you that after wearing these, I'll never go back to cotton.

Q: Are these comfortable for non-body builders?

I find them very comfortable and I am by no means a body builder. I will say that I do not like the scratchy label but with repeated washing it is getting less scratchy. They are holding up well.