The Kamen Rider OOO Eiji Hino “Tomorrow’s” underwear features a replica of the floral pattern pair Eiji Hino (played by Shu Watanabe) carries around on a stick. It is a carefully sewn underwear made in Japan. The underwear is made of 100% cotton and comes in sizes: M (about 76 ～ 84 cm), L (84 ～ 94 cm), and XL (94 ~ 104 cm).
The Kamen Rider OOO Eiji Hino “Tomorrow’s” underwear from Kamen Rider OOO will go for 3,960 Yen (tax included) and is scheduled for shipment in September 2020. Preorders are being accepted starting June 10, 2020 at 10:00 JST.
Source: Premium Bandai