Foil is the theme for many of the parallels, offering more colorful takes on the base set. All told, every card in the set has more than 50 different versions. This includes several exclusives including a new batch of spring-themed Holiday cards found only in tins.

Despite the large number of parallels, some long-running themes like Black, Father’s Day Blue and Mother’s Day Pink are not on the 2025 Topps Series 1 Baseball checklist.

What’s the Difference Between Inserts and Parallels?

While both inserts and parallels add variety to trading card sets, they serve different purposes:

• Parallels:
  • Are alternative versions of base cards.
  • Feature enhancements like different colours, patterns, or serial numbers.
  • Retain the same card number as the base version.
• Inserts:
  • Are entirely separate cards designed to complement the main set.
  • Often have unique themes, such as celebrating milestones or legendary players.
  • Typically have their own numbering system, distinct from the base set.

Understanding these differences can help you focus your collection and spot valuable cards more easily.