Ring bearer attire

I'd personally do grey suspenders and brown shoes or even a navy suspender to tie into the bowtie. But honestly any combo will still look nice!

I think it would be cute for him to have matching shoes. And I think suspenders should match the shoes, if they're also leather. If they're fabric, as long as they tone in with the other colours being worn then it will be fine.

My FH is wearing a full light grey suit, leather suspenders and brown leather loafers. His groomsmen are wearing all of the above with the exception of a suit jacket, and our 2 ring barriers are wearing the same outfit as the groomsmen with the child version of the leather loafers. They all will wear the same bow tie. We decided to match my FH boutonnière to my bouquet & the groomsmen/ring barriers will all have a simpler different boutonnière that will match my Jr bridesmaids bouquets. It really is down to personal preference! I like either choice!

If you want them to match then yes