Trading cards · Protection & storage
Learn how to double sleeve a trading card correctly: insert it upside down into a close-fitting inner sleeve, then bottom-edge first into a standard outer sleeve. The opposite openings provide better all-round protection against dust, dirt and everyday wear.
Double sleeving combines a close-fitting inner sleeve with a larger standard sleeve. When their openings face opposite directions, the card has no straight open path from the outside to its surface.
Guide the top edge of the card into the 64 × 89 mm inner sleeve so that the sleeve opening finishes at the bottom edge of the card.
Hold the 66 × 91 mm standard sleeve with its opening at the top and slide the inner-sleeved card into it from the bottom edge.
The finished card must remain flat, centred and free of trapped particles. Stop if a sleeve rolls, catches or creates visible curvature.
The close inner layer and larger outer layer are sized to work together around standard-size trading cards.
Use the Cardloader Inner Sleeve as the close-fitting first layer and the Cardloader Standard Card Sleeve as the replaceable outer layer.
Inner sleeve opening down; standard sleeve opening up. This is what interrupts the direct entry path to the card.
Both layers should sit cleanly without rolling the inner sleeve or bending the card. Never force a card through resistance.
Two sleeves increase card and deck thickness. Make sure deck boxes, binders and other storage close without pressure.
The inner sleeve opening should face the bottom edge of the card. The standard outer sleeve remains open at the top.
No. It adds an overlapping barrier against dust, dirt and brief moisture contact, but it does not protect against immersion, condensation or prolonged humidity.
Cardloader Inner Sleeves measure 64 × 89 mm and fit inside Cardloader Standard Card Sleeves measuring 66 × 91 mm for standard-size trading cards.
This can happen if the layers are misaligned or pushed too quickly. Withdraw the card carefully, straighten the inner sleeve and try again without force.
Not automatically. Two sleeves increase thickness, so verify that the deck box, binder pocket or holder has enough space and closes without pressure.
Double sleeving means protecting a trading card with two carefully matched sleeves. A close-fitting inner sleeve sits directly around the card, while a slightly larger standard sleeve forms the outer layer. The two sleeve openings face opposite directions: the inner sleeve opens at the bottom of the card, and the standard sleeve opens at the top.
This overlapping construction reduces the direct path through which dust, dirt and other particles can reach the card. It also provides an additional barrier against fingerprints, surface scratches and brief contact with moisture during normal handling. Double sleeving does not make a card waterproof or replace dry, stable storage, but it can offer more complete everyday protection than a single open sleeve.
If both sleeve openings point upward, the opening of the inner sleeve remains directly accessible through the opening of the outer sleeve. Fine dust or dirt can still enter along the same path. With opposite openings, the closed end of the standard sleeve covers the opening of the inner sleeve.
The correct orientation is therefore:
The card remains removable, but there is no straight, open route from the top of the outer sleeve to the surface of the card.
The two sleeves must be designed to work together. The inner sleeve should sit closely around a standard-size trading card without bending it. The outer sleeve needs enough room for the card and inner sleeve, but should not be so loose that the card moves excessively.
Cardloader designed the following two clear sleeves as a coordinated combination:
Both products are clear, acid-free and PVC-free. The size combination is intended for standard-size trading cards such as Pokémon TCG, Magic: The Gathering, Disney Lorcana, One Piece Card Game, Flesh and Blood and Riftbound. Smaller card formats can fit differently and should not be forced into a setup designed for standard-size cards.
Wash and dry your hands thoroughly. Use a flat, clean surface without crumbs, dust, drinks or cleaning products nearby. Check the card before sleeving: if dust is already on the surface, putting a sleeve over it can trap the particle against the card.
Use a fresh inner sleeve and a fresh standard sleeve. Replace sleeves with split seams, bent corners, clouding or visible particles inside. Confirm that the inner sleeve is the smaller 64 × 89 mm sleeve and the outer sleeve is the 66 × 91 mm standard sleeve.
Turn the inner sleeve so that its opening will finish at the bottom edge of the card. Guide the top edge of the card into the sleeve first. Hold the card only by clean edges and slide it in slowly and evenly.
Do not press hard on the card face and do not force a corner past resistance. The card should sit flat inside the inner sleeve. If it bends, bows or catches, stop and inspect the sleeve before trying again.
Hold the Cardloader Standard Card Sleeve normally, with its opening at the top. Insert the bottom edge of the inner-sleeved card first. This keeps the inner sleeve opening covered by the closed bottom of the outer sleeve.
Guide both sides evenly so the inner sleeve does not roll upward. A small amount of trapped air can occur. Move slowly and apply only light, even pressure through the sleeve until the card sits flat. Never use a hard object or concentrated pressure on the card surface.
The card should remain flat, centred and easy to handle. The inner sleeve opening should face down, while the outer sleeve opening faces up. Check that no sleeve corner is folded and that no dust is visible between the layers.
A correctly assembled double-sleeve setup can help reduce several common risks:
However, sleeves cannot prevent damage caused by immersion, prolonged humidity, condensation, heat, direct sunlight, heavy pressure or unsuitable storage. Always keep cards in a dry indoor environment and replace damaged or dirty sleeves.
Double sleeving can be useful for frequently played decks, valuable raw cards, trade cards and collections that are handled regularly. It is also a practical choice when you want the outer sleeve to take wear while the inner sleeve remains around the card during an outer-sleeve change.
It is not automatically necessary for every bulk card. Two sleeves increase the thickness of each card and therefore the total thickness of a deck or stack. Before storing double-sleeved cards in a deck box, binder pocket or other holder, confirm that the available space is sufficient and that nothing closes under pressure.
For standard-size trading cards, combine the Cardloader® Inner Sleeves in 64 × 89 mm with the Cardloader® Standard Card Sleeves in 66 × 91 mm. The inner sleeve forms the close first layer; the standard sleeve provides the replaceable outer layer.
Insert the card into the inner sleeve with the opening at the bottom, then slide the protected card bottom-edge first into the standard sleeve. The result is a simple overlapping system designed to keep both the top and bottom of the card better shielded during normal collecting, storage and play.
