Wool White Shirt

Hi, I'm looking to buy 2-3 white wool shirts to layer under a sweater vest or quarter-zip. I prefer them to be white for versatility, and because my quarter-zip and vest are all in darker colours.

Currently looking at this polo cardigan from Suitsupply: https://suitsupply.com/en-ca/men/knitwear/off-white-merino-long-sleeve-polo-cardigan/SW1732.html

Has anyone tried it and can provide me with their thoughts? Or recommend some of your favourite white shirts as well.

I live in Toronto, Canada, and aiming to spend no more than $200 CAD per shirt.

Thank you.