Inspired by the Nike Mercurial R9 released in 1998
 
Initially known as Tiempo Ultra Light and the Ronaldo Ultra Speed, the first Nike Mercurial was engineered with Ronaldo's startling velocity in mind.
 
The KNG-100 upper behaved like leather but didn't absorb water the way natural fabrics did and was thinner and lighter than traditional leather — shattering the stigma of synthetics and changing how football footwear was made. On it, a sticky coating sourced from the chassis of racing motorcycles offered ultimate ball control.
 
Size: 4" x 1.92"