Keep note of the size I select and allow me to delete/override it
When I'm looking for shoes I filter the results by size.
Every time I come back on the website I have to re-filter by size even though I am logged in every time I visit the website.
I find myself filtering by size even during the same session, by switching from page to page.
It would be great if you store the shoes size I always look for, and make it visually very clear so that I can manually override it (if I am looking for someone else's shoes, perhaps).