Laravel not ordinary URL structure

I have the task to create not ordinary URL structure for Laravel ecommerce project. URL for product: /category-slug/product-slug Example: /fruits/orange But Url for sub-category have the same structure: /category-slug/sub-category-slug Example: /fruits/citrus

My solution is:

Route( '/{category}/{var}' , function(Category $category, $var) {
	if( $sub_category = SubCategory::where('slug', $var)->first()  ) {
		return view('sub-category')->with('sub_category', $sub_category );
	}
	if($product = Product::where('slug', $var)->first() ) {
		return view('product')->with('product', $product);
	}
	abort(404);
});

But I dont like that we do extra request every time when visit product page. Maybe someone has already solved this problem, please provide your solution. Thanks in advance.