Btw, this is a complication in defining the products into categories.
By default, a category-hierarchy is like the branches of a tree.
The body divides into main braches, the main braches divide into smaller brances, … and fruits are in those smallest branches…
As you see, one fruit is growing in only one little brach, and a small branch is only connected to a parent branch..
The basic solution for such divisions is to rename the subcategories acording to that parent category.
Like in your example, there are “clothing” categorizations having Main/Parent Categories Men/Women and Sub categories as Tshirts/Caps/Bags/Accesories etc..
So rename those subcategories as Men’s Shirts, Men’s Caps, Men’s Accessories Women’s tshirts, Women’s Bags, …
In the ecommerce world, there are some turn-arounds to this hierarchy limitations. I mean; you are not limited to use only the “categories” property for such a division, you can use “tags” or “brands”, etc…
There was a late blog post in the WooThemes site about using tags and categories:
https://www.woothemes.com/2013/11/wordpress-tags/