Is there a way to distinguish different numbers such as hat sizes or membership years when one person makes and order for multiple items?

When a customer makes a purchase for multiple items within the same order with differing sizes like hats, when they check out only one of the hat sizes is retained. The other hats sizes don't show up. Is there a way to differentiate the hat sizes so that all of them show up? The same is true with our Continuous Service Pin. We have from 5 years to 50 years. So, if a single customer purchases multiple pins with different years, only the first year selected shows up. The only change recorded is the number of the items. The same is true for the hats. So, is there a way for the customer to make such purchases without having to make multiple orders for each item? Here's the link to the Hat and Pin pages:

https://www.lotcs.org/WA_eCart/hats.php
https://www.lotcs.org/WA_eCart/pins.php

Thanks in advance,

Dale Iannello