Pokémon sleeves: which size, how many and which to choose
For Pokémon cards, the right sleeve size is the standard 66 × 91 mm format, whether the cards are French, English or Japanese. The so-called "Japanese" size (62 × 89 mm) is designed for smaller cards and does not fit Pokémon cards. To go further, you add a 64 × 89 mm inner sleeve underneath: that is double sleeving.
The "Japanese size" trap
This is the mix-up we see most often. A Japanese Pokémon card has exactly the same dimensions as a French card: around 63 × 88 mm, the standard format for trading card games. So the name "Japanese size" does not refer to Japanese Pokémon cards, but to the small format used by games such as Yu-Gi-Oh!.
Gamegenic states it clearly for its Japanese-size Prime sleeves: 62 × 89 mm, for cards of up to 59 × 86 mm. A Pokémon card simply won't fit. Remember the rule: Pokémon, in any language, and One Piece too = standard sleeves.
The three sizes to know
| Type | Common dimensions | Use |
|---|---|---|
| Standard sleeve ("outer") | 66 × 91 mm | Pokémon, One Piece, Magic: main protection |
| Inner sleeve / perfect fit | 64 × 89 mm | First layer, fitted as closely as possible to the card |
| Japanese size | 62 × 89 mm | Smaller cards (Yu-Gi-Oh! type), not Pokémon |
Ultra PRO, for example, makes its Deck Protectors in 66 × 91 mm, and Gamegenic offers 64 × 89 mm inner sleeves for cards up to 63 × 88 mm. Dimensions can vary by a millimetre depending on the brand: always check the product page.
Soft sleeves vs gaming sleeves: what's the difference?
Not all sleeves are equal, and the right choice depends on what you do with your cards.
- Soft sleeves (or "penny sleeves") are thin and clear. They are used for storing collection cards, slipping them into a toploader or sending them to a grading company.
- Gaming sleeves are thicker and often have a coloured or matte back. They stand up to repeated shuffling and protect the corners better. Gamegenic's Prime ranges, for example, feature a highly opaque back and a very clear front.
- Matte finishes reduce glare and handle more smoothly. Glossy finishes show off the artwork more.
The material: PVC-free and acid-free
For long-term storage, look for the words "PVC-free" and "acid-free". The major brands generally use polypropylene, a stable plastic that does not react with the ink or the card stock. Poor-quality sleeves, on the other hand, can stick, yellow or warp over time. On a valuable card, that is not a risk worth taking.
Who is double sleeving for?
Double sleeving means slipping the card into a fitted inner sleeve, then placing the whole thing in a standard sleeve, ideally inserting it closed end first. The result: dust and moisture find it much harder to get in, and the card no longer moves around in its sleeve.
We recommend it for cards in a deck you play regularly, for valuable cards kept in a deck box and for anything you want to keep in "fresh from the pack" condition. For a simple binder collection, a single soft sleeve is usually enough.
How many sleeves do you need?
- A Pokémon deck has 60 cards. Get a pack of 60 to 100 sleeves so you have some spare in case one gets damaged.
- For double sleeving, you need the same number of inner sleeves as outer sleeves.
- When opening a booster box, allow one soft sleeve per rare card you want to protect straight away. A pack of 100 runs out faster than you think!
Find all our sleeves in the Sleeves section, and for your most precious cards, add a toploader (see our toploader guide).
Good habits in practice
- Handle cards with clean, dry hands, on a flat surface.
- Insert the card gently, without forcing the corners. If it catches, the sleeve is too small.
- Don't replace sleeves with office pockets or food bags.
- Replace gaming sleeves as soon as they split or turn white at the edges.
Torn between two products? Add them to your request list or contact us: we will help you choose.
Frequently asked questions
Do Japanese Pokémon cards need Japanese-size sleeves?
No. Japanese Pokémon cards are standard size, just like French cards. Use standard 66 × 91 mm sleeves, or 64 × 89 mm inner sleeves for double sleeving.
Is an inner sleeve enough on its own?
For binder storage, yes. However, it is very thin and poorly suited to play: to shuffle a deck, add a standard sleeve on top.
Do coloured sleeves protect better?
Not necessarily. The colour mainly concerns the back and helps you recognise your deck. Protection depends on thickness and material.
Can a sleeved card go in a binder?
Yes, with a thin soft sleeve. A thick gaming sleeve, especially when double sleeved, may however be too tight in the pockets of a 9-pocket binder.