Joining in on a collaborative project with its big brother (and original) store front Union NYC, Union Los Angeles are also set to drop a Nike Sportswear Dunk High Challenge Supreme. This time featuring a black colorway and on a tip similar to the Air Tech Challenge II, the shoe maintains a bright fluorescent highlight in yellow which pops pretty well against the black. Union LA is stitched on the heel with TPU straps coming up the side of the shoe in gray. Finishing things off are a subtle camo for the liner. Much like the NYC version, we assume the run will be pretty limited to these at in and around 100 pairs.