Ultimate Guard Cortex Sleeves Standard Size Matte Yellow (100)
Sale price£5.99
Regular price £6.49You saved7% OFF
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100 Cortex sleeves for standard-size cards
Opaque matte yellow back cuts glare and fingerprints
Built for daily play, from kitchen table to events
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Every deck deserves sleeves you never have to think twice about, and the matte Cortex range is Ultimate Guard's everyday workhorse. A fully opaque yellow back keeps your cards private, while the matte front cuts glare and hides fingerprints for easy reading under any lighting. From kitchen-table games to a full day at an event, they shrug off the daily grind without costing the earth.
At a glance
100 sleeves for standard-sized cards (Magic, Pokémon, Lorcana and more)
Sleeve size: 66 x 91 mm
Matte yellow finish with a fully opaque back
Superior shuffle feel
Acid-free and PVC-free
Why they're good
Matte finish reduces glare and photographs cleanly
Opaque backing keeps games fair and your cards hidden
Built to last through long sessions and endless shuffling
A dependable everyday sleeve with a premium matte feel — stock up in your deck's colours and keep the whole collection protected.
Precision protection at an everyday price. Double-sleeve them with a set of Katana Inner Sleeves for tournament-grade security.
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Ultimate Guard Cortex Sleeves Standard Size Matte Yellow (100)
Sale price£5.99
Regular price £6.49You saved7% OFF
Frequently Asked Questions
Will these sleeves fit my cards?
Standard size sleeves fit the 63 x 88mm cards used by Magic: The Gathering, English-print Pokémon, Disney Lorcana, One Piece, Star Wars Unlimited and most Western trading card games. If you play Yu-Gi-Oh, or collect Japanese-print Pokémon, those cards are smaller and need Japanese size instead.
A 100-count pack covers a 60-card Magic or Pokémon deck with plenty spare to replace any that split. A 100-card Commander deck needs two packs — sleeve exactly 100 and you'll have nothing left the first time one splits, which it will.
Can I double-sleeve with these?
Yes. Double-sleeving means a thin perfect-fit inner sleeve on the card first, then these as the outer — it seals the card in and stops dirt working its way past the opening. It's the standard approach for a deck you're taking to events, though it does bulk the deck out, so check your deck box has the headroom.
Matte or gloss — does it actually matter?
Mostly preference, but the differences are real. Matte shuffles better, kills glare under bright hall lighting and photographs far better; gloss slides faster and keeps artwork looking sharper. Competitive players tend towards matte, and it's worth sleeving a whole deck in one finish — a mixed deck can effectively mark your own cards.
