KMC 100 Side-In Perfect Sized Sleeves are ultra‑precise inner sleeves designed for players who want snug protection and easier double sleeving for standard cards. Each pack includes 100 thin, clear inner sleeves sized 64 x 89 mm and about 0,05 mm thick, engineered to fit perfectly around standard size cards like Magic: The Gathering, Pokémon, Lorcana, One Piece and other popular trading card games.

Unlike traditional top‑loading inner sleeves, these kmc side-in perfect sleeves use a side‑loading opening along the long edge, making it easier to insert the card and then slide it into a standard outer sleeve without the entry points overlapping. This design helps air escape more easily, reducing bubbling and improving consistency when double sleeving standard cards for tournament use. The result is a cleaner fit that many players find more secure and aesthetically pleasing in their decks and binders.

KMC’s Perfect Side‑in inner sleeves are fully translucent, preserving card artwork and foil clarity without adding cloudiness or tint. The precise 64x89mm sizing means these perfect fit inner sleeves hug the card closely, limiting unwanted movement that can cause corner whitening or edge wear over time. Because they are only 0,05 mm thick, they add very little bulk, making them ideal if you want to double sleeve your decks while still fitting comfortably into deckboxes and standard KMC or other brand outer sleeves.