Rob Kardashian, the one Kardashian people aren't clamoring to keep up with, designed a pricey line of socks that's reportedly selling so poorly, it may be pulled from shelves.

Radar Online reports that Arthur George by Robert Kardashian -- the only sock that combines the names of two of your uncles at once -- isn't exactly keeping cash registers ringing, and that if things don't pick up, Neiman Marcus is going to give it the gold-toed boot.

“[They] sold around the Christmas holiday, but since then no one has been really buying them," a Neiman Marcus source based in Beverly Hills told Radar about the socks, which sell for $30 a pair and feature designs like camo, graffiti, swirls, dancers and horseshoes. (Think Ed Hardy on acid.)

"We actually had to ship a bunch out to other stores because they weren’t moving at all ... To be honest, a lot of customers bought them more as a gag gift. At this point it doesn’t look like we’re going order any more.”

On the record, though, Neiman Marcus denies the words of its anonymous insider, saying Rob's line is one of the posh retailer's best selling socks for men.

"The Arthur George by Robert Kardashian sock line has proven to be very popular with our customers," said Ginger Reader, Vice President of Corporate Communications. In fact, Reader says Neiman's is doubling down and placing a sizable reorder for Father's Day.

What, isn't your dad a big fan of the Kardashian brand?

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