Standard (66×91 mm) fits MTG, Lorcana, Flesh and Blood, most Western TCGs. Japanese/Small (62×89 mm) fits Pokémon and Yu‑Gi‑Oh! Check board‑game sleeve guides for odd sizes (e.g., mini‑Euro, Tarot).

Matte backs reduce glare and fingerprints and offer a smoother, controlled shuffle. Glossy backs are extra vibrant and clear but show wear faster and can be slippery. Fronts may be non‑glare (text easier to read) or ultra‑clear (art pops).

Double‑sleeving pairs a tight inner/perfect‑fit sleeve with a standard outer sleeve to block dust and liquid ingress and protect edges. It’s ideal for valuable decks and frequent tournament play.

Typical counts: 60 for Standard decks, 100 for Commander/EDH, and 40–50 for many other formats. Always buy 5–10 spares to replace splits or defects and to keep back designs perfectly matched.

Most play sleeves run ~90–120μ (microns) for durability and shuffle feel. Perfect‑fit inners are thinner for minimal bulk. Archival/toploader setups use thin penny sleeves inside rigid holders for long‑term storage.

Dragon Shield (sturdy & consistent), Gamegenic and Ultimate Guard (premium finishes, tight QC), Ultra PRO (licensed art & value), and KMC (beloved perfect‑fits). Choose by shuffle feel, opacity, and budget.

Most events allow printed backs if they’re uniform, opaque, and non‑marked. For strict events, use solid‑color matte backs or high‑opacity “black core” to prevent card backs from showing through.

Inner/perfect‑fit sleeves hug the card for double‑sleeving. Side‑load inners reduce top‑edge exposure. Sealable sleeves add a fold‑over flap for dust‑tight storage in binders or boxes.

Keep hands clean, avoid gritty tables, and swap out cloudy, split, or marked sleeves immediately. Store decks upright and away from heat. Rotate commonly drawn cards to prevent uneven wear patterns.

Use publisher/size guides (e.g., Mini‑Euro, Standard‑Euro, Tarot). Choose thin, clear sleeves to keep stacks reasonable, or premium matte for titles you play weekly to reduce shine and scuffing.