These are called Neva light bar chairs.

I found similar one called Baltera Bar Stool on Etsy https://www.etsy.com/listing/4335748824/baltera-bar-stool-in-solid-oak-modern

USA supplier of Neva Light Barstools:

https://stillfried.com/products/artisan-neva-light-bar-stool

https://www.etsy.com/ca/listing/4335748646/semi-bar-stool-baltera-in-solid-oak?ls=s&ga_order=most_relevant&ga_search_type=all&ga_view_type=gallery&ga_search_query=oak+bar+stool&ref=sr_gallery-1-4&etp=1&content_source=f78e5de8-cd7f-4584-845a-8f440e507e6e%253ALTb8b6553b3f08e0f630d11b26a241ef3d25402be7&organic_search_click=1&logging_key=f78e5de8-cd7f-4584-845a-8f440e507e6e%3ALTb8b6553b3f08e0f630d11b26a241ef3d25402be7

This is one of the things i enjoy about gardenweb - finding even more beautiful stuff to admire. I would say you might want to be sure you can return them if they are bumb-numb-ers. No cushion is usually OK for island stools because people don’t tend to park there for long, but after a while even kids need a little tush support

Has anyone sat in one? If so, are they comfortable? Are they sturdy?