Leaf Announces 2026 Metal Signature Series Multi-Sport with Full Checklist

Leaf has announced 2026 Leaf Metal Signature Series Multi-Sport, a confirmed product with a published checklist, hobby box configuration, autograph offerings, parallel structure, and release date. The announcement covers the full product architecture collectors need to evaluate the release ahead of its drop.

Leaf Metal Signature Series is a pure autograph play — every box is built around signed cards across multiple sports, which means the checklist is the entire value proposition. With the full checklist now public, collectors can identify which signers matter to them before the release hits and decide whether the parallel structure creates the kind of scarcity worth chasing. Multi-sport releases like this also tend to surface unexpected names alongside marquee signers, so a close read of the full list is worth the time.