How to add one size to an item and multiple photos

[stashboxsa]

I am trying to sell vintage clothing with my square site. I want to add items and have their size attached in a way that is obvious when viewing the item. Should I just add the size to the title? I am considering creating categories with all sizes but that will be time consuming especially for men’s pants for example. I would like for shoppers to be able to select small and only see small items. 
it’s very odd to me that square wouldn’t offer, at least templates for items like clothing which needs to include size and multiple photos. How do I add multiple photos of the item for online shoppers?

[Donnie-M]

@stashboxsa There is an option on items to add attributes where you can list sizes etc.  But if you are selling multiple individual unique items, I would just put it in the title when you put the item in.  This really depends on how you want your items to look.