Adam Silver is lovin' the NBA's new collaboration with Kim Kardashian's SKIMS underwear brand ... so much so the commissioner was actually wearing 'em when TMZ Sports spoke with him this week in NYC!
We caught up with the 64-year-old commish just days after the NBA announced its multi-year partnership with Skims Mens ... which Kardashian recently introduced.
In fact, KK used OKC star Shai Gilgeous-Alexander as one of the models for the Skims Men's launch ... in addition to Neymar Jr.