Biggie's mom, Voletta Wallace, posted a photo of one of Kendall and Kylie's new "Vintage T-Shirts" which launched on their site Wednesday. Voletta ripped the biz move as "disrespectful and exploitation at its worst" -- and not just against her son.
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Voletta's also pissed about another shirt that features Kendall's face over a Tupac image.
Kendall and Kylie were selling at least 3 of these type of shirts with Pac and Biggie ... at $125 a pop.
All 3 shirts are no longer available. It's unclear if the gear sold out, or if it's been removed from the site due to the backlash.