The verdict

A close-fitting inner layer with an explicit maximum card size

I would choose these to add a conventional inner layer to a standard-size deck, particularly when following a Gamegenic storage setup. The role is additional coverage inside a playing sleeve; it is not a substitute for a rigid holder.

Choose it if

You need clear inners for cards within the listed size.

Look elsewhere if

You need a playing sleeve with an opaque back or a flap closure.

The buying facts

Manufacturer-stated specifications for the variant reviewed
Pack contents100 clear inner sleeves
Sleeve dimensions64 × 89 mm
Supported card sizeUp to 63 × 88 mm
MaterialPolypropylene
RoleInner sleeve for double-sleeving

Specifications: Gamegenic Inner Sleeves — Standard Clear — manufacturer specifications.

Will it fit?

Manufacturer-stated

The maker lists 64 × 89 mm sleeves for cards up to 63 × 88 mm. A millimeter of nominal difference does not describe usable insertion clearance after seams and material are considered.

Keep the measurement labels

A common buying mistake is treating the inner-sleeve dimensions as the maximum supported card dimensions. Here the manufacturer supplies both, so use the smaller card-size figure when checking the intended card.

I would avoid extrapolating from those two numbers to claim a tested fit in a different brand’s regular sleeve. Assemble a sample before committing to the whole deck.

Count the complete setup

A 100-count pack supplies one inner per card for a 100-card deck. Playing sleeves are a separate purchase. If an existing deck box was selected around single-sleeved cards, recheck capacity after adding the new layer.

What to compare it with

KMC Perfect Fit — Standard Topload

Compare another top-loading standard inner with documented sleeve measurements.

Dragon Shield Sealable Perfect Fit — Clear Standard

Choose this only if the tuck-in closure is worth the additional deck thickness.

Sources & verification

  1. Gamegenic Inner Sleeves — Standard Clear — manufacturer specifications — Manufacturer documentation. Verified 2026-09-26.

Your next decision