acosta!@さいたまスーパーアリーナ is a Doujin Fair taking place on 2026.07.05 at さいたまスーパーアリーナ. Organized by アコスタ事務局. COSMA covers venue access, the attendee list, official info, nearby hotels, coin lockers, and cosplay studios — everything you need to prep.
34 days to go
Saitama
2026.07.05 at さいたまスーパーアリーナ. Keep notes, start a group shoot, find costume pieces, and check hotels or gear from here.
Save it for later and keep your notes or costume plan together.
Save02Carry over the date and venue, then create a character or series listing quickly.
Create listing03Move from related tags to costumes, wigs, and props for the event.
View costumes04Check hotels, lockers, and carry cases so the day feels lighter.
View gearTap "Interested" to keep track. Add a private memo and your costume plan.
Buy cosplay costumes, wigs, and props directly from cosplayers
Browse items on COSMA※ Information is auto-fetched from official sources. Please verify the latest details on the official website.
Hand-picked carry-on bags and suitcases popular with cosplayers — from day trips to long expeditions.
LEGEND WALKER × コスプレイヤー5名
コスプレイヤーの「あったらいいな」から生まれたスーツケース
LAYER
Designed for cosplay travel
A carry case series shaped by active cosplayers, made to keep gear organized while the case stands upright.
Read the development story Part 1
4.50
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