Dahntay Jones: You Sold My Rare Nikes!!!

Cleveland Cavs forward Dahntay Jones added a ring in June ... but lost 400 kicks in July ... 'cause more than 200 pairs from his prized shoe collection were just auctioned off ... and he's PISSED.

Jones kept 208 pairs of rare Nikes in a storage facility in Atlanta for years ... but not just any old kicks, some of the shoes were ultra-rare ... including sample kicks made especially for Fat Joe.

But the facility claims Jones didn't keep up on the payments, so last week, they auctioned of the contents ("Storage Wars" style) ... and the winning bid was around $4,000.

We spoke with Jones who admits he was late on his payments -- but says it was a simple mix-up that could have been easily corrected without having to unload his sneakers.

Jones says his credit card stopped making payments to the facility due to a possible fraud alert (it happens sometimes) ... but says he contacted the facility and told them he would come up with the cash (he's reportedly made $18 mil in the NBA).

Jones says the facility went ahead with the sale anyway ... and now, he's out 1/4 of his beloved shoe collection. He's considering legal action.

By the way, Jones says the outstanding bill was LESS THAN $400.

As for his ex-kicks ... the new owner says he plans to sell them on eBay .. and we're told they'll probably fetch a hefty return.