Since you have a category with possible subcategories I'd go for modeling this as hierarchical data (More Trees & Hierarchies in SQL[^]).

You'd end up with a table like below for the categories:
(-1 indicates that a category does not have a parent and is thus a root category)

ID    Name      Description        ParentID
1     Dry Clean Dry cleaning stuff -1
2     Men       Clothes for men     1
3     Woman     Clothes for women   1

Then you need a means to relate which products are in which category so you'd create a relation:

ProductsPerCategory

CategoryID ProductID
1          1
2          2
3          3

Regards,

— Manfred