your main categories (silos) would be...
- jackets
- boots
- hats
[etc...]
And white, thin, etc... are attributes, so they don't need categories, you can simply install a filtering / sorting plugin on your site that lets visitors sort the products they're interested in (jackets, boots, etc) by whatever they want (price, color, thickness, etc..)
Now, if you wanted to further silo the site into kids / adults, or men / women you would do it like this...
jackets > kids
jackets > adults
boots > kids
boots > adults
hats > kids
hats > adults
[etc...]
And you would - obviously - optimize your pages for each one of the main keywords, like this...
HOMEPAGE... optimized only for your brand (in your case the brand is the EMD, which is "leather jackets").... or, you could optimize for both the brand (again, the EMD in your case since there is no brand, if you do have a brand just create a logo with it and name the logo file after your brand, and also include the brand on the homepage) and for other leather apparel.
When I say "optimize the homepage for leather jackets and other apparel" I mean that on the homepage you should include the words "Leather Jackets and Other Leather Apparel", or "Leather Jackets and Other Leather Accessories", or however you want to word your slogan / headline.
leatherjackets.com/jackets... optimized for your main keyword (leather jackets) and other partial-match / LSI keywords that are STRICTLY related to jackets. You don't want any "leather boots" or "leather hats" type of keyword appearing on this page because this might create cannibalization issues and google might not know which pages to rank for which keyword and they might not rank this page at all, or they might rank it way lower than other pages, and you want the
leatherjackets.com/jackets page to rank the highest for the "leather jackets" keyword.
You can include keywords like "leather jackets for kids" or "leather jackets for adults" (or both) on this page, though as this would make perfect sense since all of these keywords address the same main topic (jackets).
leatherjackets.com/jackets/kids... this page would be optimized for the main keyword "leather jackets for kids" and any other LSI / partial-match keywords that you'd consider important. By "optimized for" I mean...
- have the main keyword (leather jackets for kids) in the title of the page
- have the first image on this page called leatherjacketsforkids.jpg, or leather_jackets_for_kids.jpg if you want to use underscores, it doesn't matter... or you can use png, or webp, or whatever extension you want, just name the 1st image on this page as the main keyword, that's the important part
- have the ALT tag of this image the main keyword (leather jackets for kids)
- include the main keyword in the 1st paragraph of your content (if there is such content, otherwise ignore this part)
[etc...]
I won't continue with all of the other pages because the process is exactly the same, you'd just follow the above guidelines but replace the keywords and URLs and images, etc...
As for interlinking... you'd be interlinking the main categories (jackets, hats, boots) from the main menu and that should be enough. As for internal linking within silos you can use whatever configuration and tools needed. You can interlink manually from the description of products, you can link using a "related products" plugin like YARPP, you can interlink from a short snippet at the top of the page, etc... Just get creative and have fun with the design of your website, the important parts are to keep the design clean, fast, and compact so that people don't have to make more than 3 clicks (more than 2 ideally) from the homepage to find any product that they want, no matter if it's leather jackets, leather boots for kids, or leather hats for adults. All of these main categories and sub-categories should be maximum 3 clicks away from the homepage, that's what matters... Oh, and also the CWV and site speed, crawlability and mobile friendliness, these are important too... although, if you do silo and design your site correctly the crawlability part should be solved implicitly...
Also, make sure to read this guide on siloing, it is pretty good and it will help you understand how to silo any site that you want:
https://www.blackhatworld.com/seo/seo-siloing-2023-the-last-siloing-guide-youll-ever-need.1502244/