Originally sold directly by Mighty Fine, then at ThinkGeek (circa 2016) and then at Spencer's (2017).
From a retailer:
Teach em' what it means to be a mean fighting machine, or just a massive Star Wars fan, in the officially licensed B is for Boba Fett Star Wars Toddler Tee!
* Officially licensed
* Material: 50% cotton, 50% polyester
* Screen print design
* Wash/Care: Machine wash cold gentle cycle, inside out with like colors, use only non-chlorine bleach when needed, tumble dry low.
* Iron, only on lowest setting, around decoration
* Made in USA