I think that's her trousers with a cuffed ankle? Looks to be a velvet-like texture.
They're all the same pretty much. They sell cheap products for inflated prices, some inane and overly specific backstory for how the product was created, hundreds of fake reviews and the same payment system. Some sites seem more legitimate than others, typically those with social media accounts etc. but they nearly all have poor reviews.
On a separate note, she's so orange she's virtually neon at the moment. Is it the pills? What is going on? She's literally cooking herself.
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On a separate seperate note (Katie trivia), while watching episodes of Katie and Peter, I discovered she first lost a tooth (she swallowed it) in 2009 when she paid thousands to an American dentist who was clearly crap at his job. She had to go back to him twice. Since she's been to Turkey 2-3 times and is continuing to have teeth fall off, she'll probably end up with dentures within 5 years. She can't even talk with those massive chompers she has in now.