Apple’s Sport Loop bands don’t come in sizes small enough to fit my wrist, so I guess I shouldn’t be shocked that the smallest size Solo Loop is also too large for me. The Sport Band has never been a problem (I don’t even wear it on the smallest hole). I thought the Solo Loop was supposed to have the same sizing, but that does not appear to be the case. Size 4 Solo Loop is way larger than the Sport Band using second smallest hole.