You might think they are a little expensive for slippers, but it is definitely worth it. Im trying to see if this sound will go away in a few days so I will update but so far its looking like I got a somewhat defective product. Just to put it in perspective. This shirt is made for the people in China. I am a size 11/12 175lbs In my opinion not worth my money I was happy with these Birkenstocks until a week ago. It is currently holding 35 pairs of womens shoes. With the elasticated front panel giving a very nice hold when wearing, I will be ordering more of this designDefinitely a 5 star product I do not have an Apple Pencil, so I cant comment on whether or not it would work, but if I was a betting person, I would bet that it would work just as well!