It's the "Maui Costume featuring the demigod's signature tattoos, rope necklace and island-style skirt. Plus, padded arms and legs for mighty stature!"
Here's a WaPo article about the criticism: "Brown skin is not a costume': Disney takes heat for ‘Moana’ Halloween costume." ("Moana" is the name of the new movie. "Maui" is a character in the movie.)
“As a Poly I support our folk involved in #MOANA. But this? NO. Our Brown Skin/Ink’s NOT a costume,” one user tweeted. “Many people are Rightfully upset about this new piece of #Moana merch. Cultures are NOT costumes,” tweeted another. “Hey heads up, I’ve seen that Moana costume, and I seriously don’t want to see it again. It sickens me, please don’t ask me to talk about it,” tweeted a third. “This might be the creepiest thing Disney has ever done. ‘Wear another culture’s skin!’ ” yet another person tweeted.Yes, it would be wrong actually to wear someone else's skin. But there's also a standard metaphor about understanding another person's perspective: How would it feel to be in his skin? Do we think of murder or do with think of empathy?
One user compared the costume to the suit made from literal human skin in “Silence of the Lambs.”
And yet, given the American cultural taboo on darkening your skin to pretend to be someone of another race, how can it be okay to use a layer of latex to achieve the same effect? Some answers to that question include: 1. You're racist to assume that the child who wears the costume will be white, 2. The character Maui isn't even a person, but a "demigod," and 3. The latex really provides real distancing from the experience of skin.
On point #3, look at all the "naked" costumes that are on the market and that people who wouldn't go out naked apparently feel okay about wearing. This one jumped out at me, and I couldn't believe my eyes when I saw it's for sale at Walmart: