The Nike Air Force 1 Acorn was originally released by Nike in 2002. This pair combined materials never used by Nike. The Acorn's were sold out in most stores after their initial release but some were able to surface Nike outlet stores. This pair right here was purchased at a Nike outlet store and is an original b-grade. A b-grade sneaker maintains some malfunctions and is sold at a lower price. This shoe is 100% authentic and very difficult to come by.