and almost always a size 7 in Crocs. This product definitely will help him a lot! They are very cute and serve the purpose well. User manual some what hard to understand but seem to be great headphones. Infine, per quanto riguarda il suono, nulla da dire: nessun disturbo o fruscio e suono molto "fluido" e ben bilanciato tra le due cuffie. Im a touch typist and this could be the most annoying thing about it. They did stay in ear better than the OEM Apple tips though. The backs dug in a bit. I needed a new clothes hanger to handle my growing wardrobe. I purchase pretty much everything from amazon and barely ever write reviews but I HAD to with this product.