Mixed sizing and mixed pricing

I sell equipment for field hockey athletes. Goalkeepers buy individual pieces of their full kit or various pieces of a kit, or a full kit of all of the equipment they need – foot protection, leg protection, pelvic protection, chest protection, arm protection, hip protection, hand protection, head protection, cover pants, shirts, etc. Using sizing charts, goalkeepers might want a small pair of foot protection, a large chest protector, and an extra large shirt. Different sizes of different type of equipment might have different prices – for example, XS for one part of the kit might be $100, Small $110, Medium $115, Large $120, and Extra $125. Even if I decided that everything in ‘this’ kit cost X, I still can’t have ( at least, I don’t think I can have ) different sizes for each piece in the kit. Here’s an example of a site in this category that provides this feature… https://www.blackbeargoaly.com/product/full-set-blackbear-racoon/