Details
The charcoal Yamada Nishi tee is the piece people keep coming back to
The CDJapan : T Shirt (Charcoal) L Size " You and I Are Polar Opposites " 02 / Yamada Nishi Design Charcoal / L Collectible at $29.99 shows up in search more than anything else on the site. The "02" matters - it's the second design in the Yamada and Nishi line, not the Suzuki and Tani pairing from the first drop. Charcoal was the right base for the artwork, too: the design reads clearly without the washed-out look you get when a dark print sits on a white shirt.
Size L is the stocked size. Japanese sizing runs about one step smaller than US sizing, so this fits closer to a US medium-large than a straight US large.
Where it lands in You and I Are Polar Opposites's t-shirt collection: it's the quiet one. Yamada and Nishi's whole dynamic is two people who look mismatched and turn out to be exactly matched, and the print leans into that instead of shouting.
Stickers at $7.99 are the actual volume sellers
Three stickers carry most of the traffic:
Stickers end up on laptop lids and phone cases far more than shirts do, and at $7.99 they're the cheap way to find out whether the print holds up.
The hoodie question, answered straight
There isn't a licensed You and I Are Polar Opposites hoodie in the catalog right now. People searching for a men's hoodie are finding resellers with AI-generated mockups, or nothing at all. The charcoal tee is the closest thing - same design language, garment dye rather than a screen-printed overlay. If a hoodie drop happens, it'll show up in explore the full collection.
What the numbering tells you
"02 / Yamada Nishi Design" and "Shiny Sticker 2. Tani" aren't decoration. They track release order, which is the only reliable way to tell three near-identically named anime goods apart. Third-party listings rarely include these numbers. That's usually the first sign the item isn't what it claims to be.