T-Visor.com was founded in 1999 by John Reemsten when he began upgrading his Don Post Boba Fett helmet with an iconic, full face T-Visor just like the movie prop. After making his own, one friend after another asked him to make them a replacement T-Visor and thus the company was born. There have been dozens of updates to the site in the last 24 years with the addition of clone troopers in the Star Wars prequels and The Clone Wars animated series, as well as new mandalorian characters from Star Wars Rebels, The Mandalorian, and more.

In 2023, with a desire to retire from the cosplay and prop making industry, John handed over operations to longtime customer and mandalorian cosplayer James Clarke, who intends to ensure that T-Visor.com remains a community resource for many years to come. With John's help, James first created his mandalorian alter ego, Lucas McCoy, in 2008 and since then has been a part of many fan films, cosplay conventions, and costume clubs including The 501st Legion.