Selection box system with Ecommerce

Is there a way to create a selection box system for somthing like clothing size in a ecommerce menu as seen in the website below. the menu is listed under Tailles disponibles :

Boutiques Chic Chez Vous - Haut adapté 1NHT121-1W106

Here is my site Read-Only: LINK
(how to share your site Read-Only link)