They fit my average size head well, but if they clamped any harder I think wearing them for more than about half an hour might be a problem. I had the purple one and used it mainly for assisted pullups. I am NOT disappointed so far! The Spigen case actually scratched my AirPods case in two places (see photos). Sooo Cute and Light 𝙒𝙚𝙞𝙜𝙝𝙩 I love this little handy shoe holder . 5, they sat conformably at my hips. The material is thin and somewhat stretchy, and they are very comfortable! This rack has everything. Goes together very tight, and with some difficulty, but thats what is needed in order for it to stay together. When my oldest finally breaks the plastic ones hes using (he destroyed the head band part on his, then the headband part on the pair intended for his brother (the inflexibility of those does not survive well in his backpack which he tosses around without consideration for the contents), hes currently on the pink pair that was intended for my daughter ;) I will replace them with one of these.