Patrick Mahomes Insert Cards Explained: Downtown, Kaboom & Color Blast

Once you get past his 2017 rookies, the loudest, most-photographed Patrick Mahomes cards in the hobby are inserts — Downtown, Kaboom, Color Blast and the rest of the case-hit chase. They are also the corner of the market where collectors get confused most often, because “insert” and “parallel” get used interchangeably, and because the designs are counterfeited more heavily than anything else in football cards.

This guide explains what an insert actually is, which families drive the Mahomes market, how they differ from the parallel ladder covered in our Prizm & Optic parallels guide, and how to buy one without getting burned. As always, we do not quote print runs, pull rates as exact odds, or pop counts — those get misremembered and change constantly. We describe how the sets are built and point you at live eBay listings for the current market.

What an insert actually is

Every Panini football product is built in layers:

1. The base set — the numbered checklist of standard cards. For Mahomes in 2017, that base rookie is the anchor of the whole market.
2. Parallels — the same base card reprinted in a different color or finish, often serial-numbered. Silver Prizm, Holo, Gold. These are covered in detail in the parallels guide.
3. Inserts — separate mini-sets with their own name, own design, and own artwork, seeded into packs alongside the base cards. They are not part of the base checklist and usually look nothing like it.
4. Autographs and memorabilia — on-card or sticker signatures and relic swatches, sometimes layered on top of an insert design.

The simple test: if it looks nothing like the base set, it’s an insert. If it looks exactly like a base card but shinier or colored, it’s a parallel.

Insert or parallel? The distinction that costs people money

This trips up buyers constantly, so it’s worth stating plainly:

• Silver Prizm, Holo, Gold, and the pattern parallels (the zebra-stripe and animal-print style finishes people search for by name) are parallels — alternate printings of a base card.
• Downtown, Kaboom, Color Blast and the other named art sets are inserts — different cards entirely.

Why it matters: a listing that says “Mahomes Prizm insert” is using the word loosely, and you can end up paying insert money for a parallel — or, worse, dismissing a genuine case hit because you assumed it was a common colored base. Read the card’s own set name, which is almost always printed on the front or back, before you bid.

To make it more interesting, inserts have parallels of their own. A marquee insert often exists in a base version plus colored and serial-numbered versions climbing above it, exactly like the base-card ladder. So “a Mahomes Downtown” can mean several different cards at very different prices.

The headline insert families

These are the Mahomes insert families with the deepest demand. Each is a Panini design that recurs across products and seasons, so Mahomes versions exist from multiple years — always confirm the year and product in the listing.

Downtown

Downtown is Panini’s city-skyline art insert — a stylized illustration of the player set against landmarks and imagery tied to his team’s city. For Mahomes that means Kansas City iconography, and the card is instantly recognizable even to non-collectors. Downtown is a case hit: seeded thinly enough that a sealed case typically yields about one, across all players in the checklist. That scarcity plus crossover appeal is why it commands the prices it does. Collectors also search for the companion and successor art designs Panini has run alongside it in later products — the Downtown rail below surfaces whatever is actually listed right now, which is a better guide than any static list.

Kaboom!

Kaboom! is the comic-book-cover insert — bold panel art, action lines, and the player rendered in a superhero style. It is arguably the single most recognizable modern insert design in the entire hobby, and for star quarterbacks it is a blue-chip chase. Like Downtown, it is a case hit and it carries enormous crossover demand from people who buy it as art as much as as a card. It is also the most faked design in football cards — see the warning section below before you buy one.

Color Blast

Color Blast is the painted, color-splash insert — the player rendered against an explosion of paint-like color, usually on a thick, high-gloss stock. It appears across Panini’s chromium-family products and is the third pillar of the modern case-hit trio alongside Downtown and Kaboom. Because the design leans so heavily on eye appeal, centering and surface condition matter more here than on almost any other card — a soft corner or an off-center print is very visible on a full-bleed art card.

Everything else

Beyond the big three, every Panini product carries its own insert sets — milestone and achievement themed sets, die-cut sets, and short-printed art sets that rotate year to year. Most are affordable and fun; a handful become chases. Mahomes appears in essentially all of them, because he has been a headline name in every checklist since 2017. If you want a cheap entry into insert collecting, the common insert sets are one of the most attainable ways to own a genuinely good-looking Mahomes card.

Why inserts matter in a Mahomes collection

His 2017 rookies are the liquid, blue-chip core — that’s covered in the rookie card checklist and the rookie cards money page. But inserts do something the rookies can’t:

• They keep coming. There is exactly one Mahomes rookie year (2017, permanently — see Mahomes cards year by year), but a new crop of inserts arrives every single season. If you want new Mahomes cardboard to chase, inserts are the supply.
• They cover his championship seasons. Marquee inserts from his Super Bowl and MVP years are the flashiest way to own a card tied to a title run — see the championship-era cards list.
• They span the whole budget range. Common inserts are among the cheapest Mahomes cards you can buy; case hits sit near the top of the modern market. Few categories stretch that far.

The fake problem — read this before you buy

Kaboom and Downtown are the most counterfeited designs in modern football cards. Because both are visually striking and expensive, there is an enormous cottage industry printing unlicensed lookalikes and selling them online. They go by many names: custom, ACEO, art card, fantasy card, novelty, silhouette, refractor custom. Some sellers disclose it clearly; many bury it, and plenty of buyers resell them later as the real thing — accidentally or otherwise.

How to protect yourself:

1. Buy graded whenever the price justifies it. A PSA, BGS, or SGC slab settles authenticity. Grading companies do not slab customs as genuine Panini cards.
2. Read the title and the fine print for the tells. Custom, ACEO, art, fantasy, novelty, reprint, not authentic, tribute. Any of these means it is not a real Panini insert.
3. Demand the real product name and year. A genuine card comes from a specific Panini product and season. A seller who can’t or won’t name it is a red flag.
4. Distrust the price. A case-hit insert of the most popular quarterback of his era does not sell for pocket change. If the price looks impossible, the card isn’t real.
5. Check the stock and finish in the photos. Real inserts of these families are printed on premium stock with a distinctive finish; many customs are obviously flat, thin, or printed on an inkjet.

The same instincts apply to signed cards — our guide to spotting fake Mahomes autographs covers the signature side in depth, and the Mahomes autographs list sorts certified autos from loose “signed” cards.

How to buy inserts without overpaying

1. Identify the exact card. Set name + year + product + parallel (if any). “Mahomes Kaboom” is a category, not a card.
2. Price against sold comps, not asking prices. Insert asking prices are notoriously optimistic. Recent sold eBay listings are the only honest signal.
3. Grade matters more on art cards. Full-bleed designs show every flaw. If you’re buying at a serious price, buy the grade, not just the card — run the numbers with our grading ROI calculator and check the borders with the centering tool before submitting anything of your own.
4. Decide whether you want the chase or the look. Common inserts deliver most of the visual appeal at a tiny fraction of the price. If you love the design more than the scarcity, buy the affordable one and enjoy it.

Find it on eBay

The rails below open live listings for each insert family. What you see there is the actual current market — that’s the honest way to price a Mahomes insert, and it’s also the fastest way to see which designs are circulating right now.

Where to go next

• Prizm & Optic parallels explained — the other half of the picture: the base-card color ladder.
• Rookie card checklist — every 2017 brand, brand by brand.
• Mahomes cards year by year — the season-by-season map, including which years produced which inserts.
• Championship-era cards — the title-run cut, with live rails for inserts from those seasons.
• What is a Mahomes card worth? — the valuation walkthrough: identify the card, read the grade, price it on sold comps.
• Should you grade your Mahomes cards? — PSA vs. SGC vs. BGS, and when grading an insert pays off.
• Hubs: the Patrick Mahomes player hub and the Kansas City Chiefs team page.