I believe these are the mercurial r9 from 1998. I remember having a pair with the same colorway but without cleats. For indoor soccer I believe but can't find any info online.
SoccerBible on X: "#ThrowbackThursday The Nike Mercurial R9 worn by El Fenomeno in 1999. See more here | http://t.co/SSYIV2bazB http://t.co/H117CUYwjj" / X