Mike's only bringing his blaseball uniform with him, but if she wants to talk to any of that he's been running with the Garages for five six seasons and has kept the same cap and catcher's mitt for the entire time. Both of them he tends to toss around a bit, especially when he gets frustrated, but he thinks the catcher's mitt is lucky (despite, uh, all evidence to the contrary) and wears the hat around most of the time. You're free to come up with how helpful or unhelpful they might be/what they're generally like!