Opening practice pressure on the shoulders and zipper (which closes from bottom to top, I said because I had the right once at a gig which was closed in reverse and it was not very practical). Good quality.
Mixed, is perfect for girls and boys; Cute drawing!
Only drawback, if baby tends to get up in bed, he pulls on the shoulders and can remove pressures; but I have a daughter who moves a lot +++ and it only happened once.