Ultimate Guard Cortex Sleeves Japanese Size Matte Transparent (60)
Sale price£1.39
Regular price £3.89You saved64% OFF
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60 Cortex sleeves for Japanese-size cards
Frosted matte transparent finish cuts glare
Approx. 62 x 89mm — acid-free, no PVC
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The Cortex range is Ultimate Guard's everyday workhorse sleeve — precision-made and built for the daily grind. This 60-pack is cut for Japanese-size cards, with a frosted matte transparent finish that cuts glare while keeping the card visible.
At a glance
60 Japanese-size sleeves per pack
Frosted matte transparent finish
Superior shuffle feel
Acid-free, no PVC
Sleeve size approx. 62 × 89 mm
Why it's good
Matte surface reduces glare under bright lights
Great as a glare-free outer layer for double-sleeving
A no-fuss matte sleeve that shuffles beautifully and keeps your cards clear.
The everyday sleeve that punches above its price. Pair with a set of coloured inners for tidy double-sleeving.
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Ultimate Guard Cortex Sleeves Japanese Size Matte Transparent (60)
Sale price£1.39
Regular price £3.89You saved64% OFF
Frequently Asked Questions
Which cards are Japanese size?
Japanese — or small — size sleeves fit cards around 59 x 86mm: Yu-Gi-Oh, Japanese-print Pokémon, Cardfight!! Vanguard and most Japanese-language games. Standard Western cards from Magic, English Pokémon or Lorcana are larger and won't fit in these.
A main deck runs 40 to 60 cards, plus up to 15 each in the Extra and Side decks — so a complete build usually wants 60 to 90 sleeves. Buy a little over rather than exactly enough: sleeves split, and matching a part-used pack months later is a lottery.
Can I double-sleeve Japanese-size cards?
Yes, and it's common in Yu-Gi-Oh. A perfect-fit inner goes on the card, then a Japanese-size outer over the top. Worth knowing there's a second method too — a Japanese card in a perfect-fit inner, then a standard-size outer. That fits fine and opens up the much wider range of standard-size designs.
Will Japanese-size sleeved cards fit a standard deck box?
Yes — they're smaller than standard sleeved cards, so any box rated for standard sleeves takes them with room to spare. You'll have a little slack, which a couple of card dividers will tidy up.
