I have been trying to find comfortable ear muffs for years that arent too heavy. (open back). Selecting the mouse button to perform anything on the numpad didnt work at first. On top of a great product, Youjias follow-up message was extremely polite and professional, asking for what they could do better and to contact them if I had any problems. too loose I would not recommend purchasing these slippers. They are easy to clean, so I dont mind getting them dirty from hotel usage. Had this before love all the little nodules that give your feet a work out. I ordered a 5, when normally Im a 5. They do come with a pretty nice wiring harness with relays and fuses already installed.