Creating a set from two existing items

[Stan82]

Hi there,

Is there an app or other way to create a set product, such as yoga pants and sports bra. Customers should be able to select different sizes and colors for each of the items. They would also need to buy both, because its a set.

The main point is that customers can fit into leggings in size L, but for bra they would fit in size XL.

Hope this makes sense.

Thank you