Kids at a sneaker shop in California got the surprise of a lifetime last month ... 'cause NBA star Zach LaVine popped by and hooked them up with new Jordans!!!
TMZ Sports has learned ... 4 lucky kids were hanging out at Swish Studios in Irvine, when the Chicago Bulls star showed up looking for some new shoes.
We're told the foursome -- who had just wrapped up a soccer tournament -- knew who the NBA player was right off the bat .