Impact
Bumper geometry absorbs shock at corners and edges — exactly where slabs crack first.
Protective sleeves for graded slabs. Built for PSA and CGC. Made for collectors who know what they hold.
Impact-shielded bumperOptical-grade clear backUV-attenuating polymerPSA Standard fitCGC Standard fitMade in MünchenPre-launch · 2026
Three ways to ruin a card.
We handle all three.
Scratches
Clear back panel with no abrasive surface. No haze. No clouding when stacked.
UV
Reduces light bleaching. Critical for displayed cards or anything near a window.
One sleeve. Two standards.
PSA and CGC use compatible slab dimensions. A single Gemguard sleeve fits both. No duplicate stock, no mix-ups.
- Fits
- PSA Standard Slabs, CGC Standard Slabs
- Material
- Finalizing before launch
- Design
- Clear back, colored bumper
- Origin
- Disclosed at launch
Product photography and final specs drop before launch. Join the newsletter to see them first.
Who this is built for.
Display collectors
You showcase cards on shelves or in cabinets. A sleeve is the difference between heirloom and sun damage.
Resellers
You ship slabs to buyers on eBay, Cardmarket, Catawiki. A sleeve cuts return rates and friction.
Investment collectors
Your cards are part of an asset class. Slab integrity is value preservation.
We collect, too.
Gemguard is based in Munich. The project is run by CardConnect — a team that grew out of collecting graded cards.
We spent years looking for sleeves that fit our own slabs. What we found was either too cheap, too generic, or too expensive without the substance to back it.
So we're building our own. Starting with PSA and CGC. More standards will follow once we've nailed the first two.
What collectors ask us.
PSA Standard and CGC Standard. Both graders use compatible dimensions. BGS, SGC, and TAG run different sizes — those are coming in a later phase.