{"product_id":"ultimate-guard-cortex-card-sleeves-100-pack-standard-size-66x91mm-yellow-back-glossy-acid-free","title":"Ultimate Guard Cortex Card Sleeves (100 Pack) – Standard Size 66x91mm, Yellow Back, Glossy, Acid-Free","description":"\u003cp\u003eUltimate Guard Cortex outer card sleeves in yellow back with a glossy finish provide a clear, durable layer of protection for standard-size trading cards (66 x 91 mm). Each pack contains 100 sleeves, weighing 137 grams, and are designed for frequent gaming without damaging cards. They are a more affordable alternative to the brand’s Katana sleeves, yet still offer high opacity and a smooth shuffle feel.\u003c\/p\u003e\u003ch2\u003eWhat makes Cortex sleeves different from Katana?\u003c\/h2\u003e\u003cp\u003eCortex sleeves are built for daily use with a lower price point while maintaining quality. Katana represents Ultimate Guard’s top-tier construction, but Cortex delivers a solid shuffle feel and durability for regular play. Both use premium materials, but Cortex aims for an everyday balance.\u003c\/p\u003e\u003ch2\u003eGlossy finish: pros and cons\u003c\/h2\u003e\u003cp\u003eThe glossy front lets card art show true colors, but in bright settings it can cause reflections. If you play under direct light, you might prefer a matte finish (available separately). Both options have opaque yellow backs to hide card information and keep your deck uniform.\u003c\/p\u003e\u003ch2\u003eWhy acid-free and PVC-free matters\u003c\/h2\u003e\u003cp\u003eAcid and PVC can cause gradual yellowing or brittleness in cards over time. Cortex sleeves are free of both, so they won't harm your collection. This makes them a safe choice for long-term storage or frequent handling.\u003c\/p\u003e\u003ch2\u003eDimensions and build details\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUltimate Guard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCortex Outer Sleeves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e66 x 91 mm (Standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor Back\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYellow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGlossy (front)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 sleeves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic, acid-free, PVC-free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight per pack\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e137 grams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eCommon questions about Cortex sleeves\u003c\/h2\u003e\u003ch3\u003eCan I use these sleeves for double-sleeving?\u003c\/h3\u003e\u003cp\u003eYes. Cortex sleeves work well as outer sleeves over inner sleeves like Ultimate Guard Katana inners. They have enough room for a standard-size inner sleeve, offering extra protection for valuable cards.\u003c\/p\u003e\u003ch3\u003eAre these sleeves suitable for Yu-Gi-Oh?\u003c\/h3\u003e\u003cp\u003eNo. Cortex standard size (66x91mm) fits Magic: The Gathering, Pokémon, and similar games. For Yu-Gi-Oh, choose the Japanese size version of Cortex sleeves.\u003c\/p\u003e\u003ch3\u003eHow many sleeves are in a pack?\u003c\/h3\u003e\u003cp\u003eEach pack contains 100 sleeves, enough for a standard constructed deck plus sideboard in many TCGs.\u003c\/p\u003e","brand":"Ultimate Guard","offers":[{"title":"Default Title","offer_id":58077335650607,"sku":null,"price":23.65,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/4478\/7503\/files\/ultimate-guard-cortex-card-sleeves-100-pack-standard-size-66x91mm-yellow-back-glossy-acid-free-1.jpg?v=1781582456","url":"https:\/\/toysforkid.co.uk\/products\/ultimate-guard-cortex-card-sleeves-100-pack-standard-size-66x91mm-yellow-back-glossy-acid-free","provider":"Toys For Kid","version":"1.0","type":"link"}