Polyester 707 hoodie! I got it on Amazon, if anyone is interested, comment below and I'll post the link! It's very light and airy so it wouldn't be too bad on hot
FREE] VROID 707's Hoodie by Azzadraws on DeviantArt
Game Mystic Messenger 707 Hoodie and T shirt Hacker 707 Cosplay Costumes for Adult Men Halloween Cosplay Costumes|Game Costumes| - AliExpress
Mystic Messenger 707 custom hoodie by simakai on DeviantArt