Hi Everett,
Thank you for your considered response.
Choice wise, I feel fairly constrained by my shopping cart (Opencart, and lack of technical ability !
So am I correct in thinking that Google reads the rel canonical, not what appears in the URL? I've checked the generated rel canonical & by default it takes just the product name, probably as products, as you say, can be in more than 1 category. So I get: www.vintageheirloom.com/red-2.55-classic-double-flap-bag-1362483150
As you say this omits the term chanel & vintage.
With no understanding of how to implement your suggestion of putting all products into a 'products' category I think it might be safer for me to leave as is... for now. I'll certainly bear this in mind when I next rebuild the website, all good food for thought.
Thanks!