Bandai is releasing the Jet Jaguar '73's STYLE T-shirt, and the Gorosaurus '67's STYLE T-shirt. Both shirts 100% cotton, come in sizes M to XXL, and retail for 3,300 yen. They can be pre-ordered from Bandai here and here, with release scheduled for Jan 2022. (Model: Yui Natsuki, wearing size L)