KMC Sleeves: Side-In - Perfect Size Sleeves - Clear (100-Pack)

Protect your valuable trading cards with KMC Side-In Perfect Size Sleeves (100-Pack) – the ultimate inner sleeve solution for collectors and competitive players. These side-loading “perfect fit” sleeves are engineered for a snug, exact fit that eliminates any excess at the top of the card. Unlike traditional top-loading inner sleeves that can protrude or catch when inserting into an outer sleeve, KMC’s innovative side-in design aligns precisely with your card’s edges to avoid that problem altogether​. Simply sleeve your card from the side and slide it into a standard sleeve for double-layered protection that’s smooth and hassle-free.

Key Features:

• Snug Side-Loading Design – Side-in sleeves ensure an exact fit with no top-edge overlap, preventing the inner sleeve from snagging or sticking out of the outer sleeve​. This design was created to satisfy players who found regular perfect fits imperfect – now you get a perfect size fit every time!
• Ultimate Card Protection – Each sleeve acts as an inner layer of defense guarding your cards against dust, fingerprints, and moisture. By double-sleeving (using these inside your regular sleeves), you shield your cards’ surfaces and edges from wear during shuffling and play, preserving their condition and value.
• Standard Size Compatibility – Measuring 64×89mm, KMC Perfect Size sleeves are made for standard trading card dimensions​. They fit cards from popular games like Magic: The Gathering and Pokémon perfectly, hugging the card without excess plastic. You can even use them for Yu-Gi-Oh! cards as inner sleeves (Yu-Gi-Oh! cards are smaller, so there will be extra space, but they’ll still add protection when combined with an outer sleeve). Compared to loose penny sleeves, these perfect fit inners are narrower and shorter for a precise fit inside standard sleeves​.
• Premium Quality Materials – KMC sleeves are made from clear polypropylene, an archival-safe plastic that contains no PVC or acid to harm your cards​

. The material is ultrathin (only 0.05 mm thick​) to avoid bulking up your deck, yet it’s surprisingly durable and tear-resistant. Made in Japan, these sleeves exemplify the high production quality and consistency that players trust for their prized cards.

• Archival Safe & Tournament Legal – With their acid-free, non-PVC composition, KMC Perfect Size sleeves won’t corrode or discolor your cards, making them ideal for long-term archival storage of collectibles. They’re also 100% tournament legal as inner sleeves. In fact, double-sleeving (using an inner sleeve like KMC Side-In plus an outer sleeve) is permitted in official play for major TCGs including Magic, Pokémon, and even Yu-Gi-Oh! under current rules​. Protect your deck at Friday Night Magic or the next regional tournament with confidence.
• Convenient 100-Pack – Each pack includes 100 clear inner sleeves​, giving you enough to protect a full deck (with spares) or an entire collection of cards. Whether you’re sleeving a Commander/EDH deck, a Pokémon binder, or your favorite sports cards, this 100-pack provides ample sleeves to keep them all safe. Use KMC Side-In Perfect Size sleeves on every card, then add your favorite decorative outer sleeves on top for the ultimate double-sleeve protection setup.

KMC Side-In Perfect Size Sleeves combine a flawless fit, strong protection, and top-tier quality to meet the needs of both collectors and competitive players. By emphasizing a side-loading design for easier double-sleeving and long-term preservation, these inner sleeves set themselves apart from ordinary card sleeves. Upgrade your card protection with KMC’s trusted brand of sleeves – your valuable cards will thank you!