2026 Topps Series 1 Baseball - Mega Box Upper Deck 1 #'d Non-Auto/Mem Base Set

1 #'d Non-Auto/Mem Base Set Legends Card per Box

The ever-popular Rookie Auto insert is back

Monumental Patch Booklets #’d 1-of-1

we won’t judge)

2026 Topps Series 1 Baseball - Mega Box Upper Deck 1 #'d Non-Auto/Mem Base Set8 Cards per Pack, 17 Packs per Box Look for Exclusive Red and Silver Sparkle Parallels Celebrate the spirit of 1977 with 2026 Topps Heritage Baseball. This years release captures the bold, unmistakable design of the era and pairs it with todays stars, rookies, and fan favorites. The 400 card set highlights League Leaders, Record Breakers, postseason moments, Quad Rookies, and Turn Back the Clock subsets. Mega Box Collectors can chase exclusive Red