Question: What year did artist Jim Lee take over regular penciling duties for Uncanny X-Men?

Answer: in 1989, specifically in issue #267, he began his legendary tenure with the forever ill-fated X-Men.

In 1991, due to his sharp, immensely detailed artwork garnering an overabundance of fan-based support, Jim Lee would move on to penciling and co-plotting a second X-Men book, simply titled X-Men. 

Accompanied by writer Chris Claremont and kicking off with several interlocking covers, X-Men #1 was named the best-selling comic book of all time, selling over 8.1 million copies and raking in over seven-million X-Dollars.

Enough with the history lesson! Tell us more about the actual t-shirt!!

Fine. Made from 90% cotton and 10% polyester, our X-Men 90's Mutant Circle by Jim Lee Men's T-Shirt is a heather-gray X-Men t-shirt celebrating Jim Lee's amazing artwork and his astoundingly positive effect on comic book sales.

Yep, it's the 'X-Circle' filled with Jim Lee-rendered images of Storm, Wolverine, Beast, and Rogue. Besides the stunning X-People, the symbol beseeches Mutants to unite!  So...unite, already!