AudlyJust like any wooden furniture, etc, the finish on these is going to be more delicate than something synthetic like polycarbonate. If you toss these in a backpack unprotected, they're going to get dinged up. I've also seen some comments where people got nicks from the 1/4" connector when coiling up the cable with the headphones in the included storage bag for transport. I'd recommend coiling / securing the cable outside the bag or using some sort of hard-sided case where you can manage the cable if you're going to tote these around.
I plan to keep mine safe on my desk or in a hard-sided Pelican case when not in use, so I'm not worried about durability. The unique and natural wood aesthetic is a plus for me.