Attire as an ALT

I’ve been given a [vague] guide on how I am to dress as an ALT. Black and white are out of the question except for funerals and celebrations, so I’m stuck with Navy, Charcoal/Grey and Beige. I sweat a lot naturally, so I would love some grey and navy clothing, but most pantsuits I’ve found have a pattern of sorts.

So I’m asking you, r/teachinginjapan: Were you ever given any counsel against wearing patterns – particularly plaid and stripes?

I’d ask my recruitment team, but they’re current closed for the holidays until the 2nd week of January.

Edit: Thanks everyone for your input. No one really answered my question about patterned clothes, but I’m getting the consensus is to dress business casual and relax.

Edit 2: Thanks, I’ve learned quite a bit in a short amount of time. ☺️