Here is a sample app. This app has 2 samples. Drop Down List based on Drop Down List and Drop Down List based on field. Will work with popup menu, just change from drop down list to a popup menu.
I think I'm following you but i'm wondering if my example might be different. I have 1 table with 2000 records. I want the popup to show only 60 of those records based on the Leather field being equal to 1(boolean)
You may find these links helpful. Option 1 in the forum tutorial may be the simplest approach depending on which table has "leather = 1":
Forum Tutorial: Custom Value List?
Knowledgebase article: http://help.filemaker.com/app/answers/detail/a_id/5833/kw/conditional%20value%20list
Hierarchical Conditional Value lists: Conditional Value List Question
Feel free to post follow up questions here if those links aren't enough to get your value lists working correctly.