Con Tee Rules Heavy Black Blanks, Screen Print, No Sink Dye

ok so my con tee rules after I ruined a hotel towel, because apparently I need rules for this now. I cosplay Hinata from Karasuno and Kenma from Nekoma so my bag is basically wig, makeup test, props, con photos, return photos, safety pins, and double-sided tape. I’ve popped seams on a crowded Comiket floor and taped a neckline back together before a school con photoset, fun. I’ve also had a glossy chest print flash white in every single return photo from a school con, which is why I now squint at booth samples under phone flash. My clothing choices got meaner after two specific fails.

The Aoba Johsai thing still haunts me, I tried dyeing a shirt teal/green in a hotel sink after a local con, thought I was being clever, and turned a white towel into a swamp gradient. That was a ¥3,000 hotel laundry fee and a lot of cold rinses with color catcher sheets. Now I use a plastic tub, gloves, and a dedicated black towel. No sink dye jobs unless I’m okay losing the towel. Also, anything that says “dyed” and “polyester” in the same booth listing can stay far away. Sublimation on 100% poly looks fine for five minutes, then every underarm sweat patch is a permanent weather map, I don’t need my Kenma shirt to smell like a gym bag by 2 p.m.

I paid ¥4,200 for a Karasuno Hinata tee at Comiket two summers ago because the print was thick black-base screen print, not that glossy vinyl that reflects as a white block in every con photo. That shirt has a heavy cotton blank, maybe 5.6 oz, with the print going across the chest and a small Karasuno crow on the back panel. The left sleeve hem has a tiny crack in the ink from a concrete wall, but the cotton didn’t shred. Wait, no, actually scratch that, I remember now, the sleeve crack was from scraping a concrete wall, the bad train home was just pressing the shirt against a prop sword. The screen print sits in the fabric instead of on top like a sticker. It survived a school con, a local con, and one very bad train home pressed against a prop sword. The underarm seam did pop after I did the Hinata jump pose too aggressively. I safety-pinned it inside, then stitched it with black thread at 1 a.m., it’s not pretty, still wearable, and that’s the bar.

The Kenma shirt was ¥2,700 from a local booth, and the neckline stretched out because I pulled it over a wig cap like a raccoon. The collar also got a faint foundation smudge from a makeup test; a makeup wipe and cold water got most of it out. I fixed the stretch with double-sided tape for the photoset and then did a tiny zigzag stitch along the collar. The print is water-based screen print on a black blank, so it’s soft but not glossy. My complaint: why do cheap con booths keep pushing heat-pressed vinyl and calling it premium? It cracks after two washes and reflects flash like a traffic mirror. I’d rather pay ¥3,500 to ¥4,000 for a heavier blank with a proper screen print that doesn’t shine.

Unpopular opinion: white tees are not the default for cons. I know everyone loves a clean white shirt for photos, but underarm sweat, wig glue, and ramen broth are real. I sweat through a white shirt at a summer local con in about twenty minutes, and then spent the rest of the day doing the jacket-around-waist shuffle. A white tee at a summer Comiket is a countdown timer. I’ll take a heavy black blank any day. It hides the color catcher incident, it doesn’t show sweat as much, and the print pops harder. Is that boring? Maybe. My towel has opinions.

Anyway.

Oh right, also why does every con bathroom run out of toilet paper by noon, and it’s so hot outside my phone battery just dies while I’m standing in line waiting for nothing, but yeah, back to the shirts.

Small tangent: I also bring a mini sewing kit now. Not because I’m organized. Because I once watched a Nekoma cosplayer fix a shoulder seam with a safety pin and a hair tie, and honestly, respect. I keep two safety pins on the inside hem of every shirt, plus double-sided tape for the neckline. The tape is for the shirt and sometimes for my sanity.

For blanks, I’ve had good luck with United Athle 5.6 oz heavy cotton and Printstar 5.6 oz, ¥1,100 to ¥1,600 depending on where I order. Thick enough to hold a screen print without going full cardboard. Ask for a water-based or thick plastisol print on a black base if you want the ink to sit dark and not flake. Heat press vinyl? Only if you like white blocks in flash photos and cracks along the chest, I don’t.

So my con kit is: black heavy blank, screen print, safety pins, double-sided tape, color catcher sheets, and one black towel for dye emergencies. The Aoba Johsai towel is still in my laundry basket. I can’t look at it.