The 2026 Topps Series 1 Rainbow Foil trading cards offer a unique addition to any baseball card collection. Featuring various Major League Baseball teams such as the Boston Red Sox, Chicago Cubs, and New York Yankees, these English-language cards are 20 pt. thick and showcase a rainbow foil parallel variety. Manufactured by Topps, these standard-sized cards are ideal for fans looking to complete their set from the 2026 season.