Strawberry
Premium Clear Slim
Slim, card-hugging sleeve. Goes on first when you double-sleeve.
sleeve guide
Every sleeve has a K-pop song name and a job to do. Answer a couple of questions and we'll match you — single, double, or decorative.
the full reference
Prefer to browse it yourself? Here's every size, every flavour and the how-to — all in one place.
Every sleeve drawn to relative scale. Outer is the full size; inner is the usable opening your card slides into. Mix and match for double-sleeving.
✦ drawn to relative scale · outer dimensions in mm
| Sleeve | Outer dimensions | Inner dimensions |
|---|---|---|
|
Strawberry
Premium Clear Slim Sleeves
|
58 × 89 mm | 56 × 87 mm |
|
Vanilla
Premium Clear Standard Sleeves
|
60 × 92 mm | 58 × 90 mm |
|
Mint Choc
Premium Clear Outer Sleeves
|
61 × 94 mm | 59 × 92 mm |
|
Caramel
Premium Mini Tour Sleeves
|
72 × 102 mm | 70 × 100 mm |
|
Butter
Mini Postcard Sleeves
|
82 × 122 mm | 80 × 120 mm |
|
Galaxy
Premium Sparkly Back Sleeves
|
62 × 91 mm | 60 × 89 mm |
|
Palette
Premium Coloured Back Sleeves
|
62 × 91 mm | 60 × 89 mm |
Same universal sizes, named after the job they do. Here's when to reach for each one.
Premium Clear Slim
Slim, card-hugging sleeve. Goes on first when you double-sleeve.
Premium Clear Standard
Your typical sleeve. Fits the vast majority of K-pop photocards.
Premium Clear Outer
Big & roomy sleeve. Goes over the top of a Strawberry Slim Sleeve.
Premium Mini Tour
For mini tour cards, a slightly larger format common in HYBE tour merch.
Mini Postcard
For postcards and oversized cards — photo essays and season's greetings.
Premium Sparkly Back
Sparkly-backed sleeves. Goes over a Strawberry Slim Sleeve, or on its own.
Premium Coloured Back
Pastel, colourful sleeves. Goes over a Strawberry Slim Sleeve, or on its own.
Two colour-lines, both named after songs that double as colours. Tap a name to preview the back.
✦ Celestial Sparkle
Real micro-glitter backs in deep, cosmic tones. Premium sparkly-back sleeves that frame a card like the night sky.
✦ Pastel Coloured Backs
Solid coloured backs in pastel and pop shades. Seven song-named hues to colour-block your binder, page by page.
Two sleeves, openings facing opposite directions — sealed both ways. Strawberry inside, Mint Choc outside.
Slide the card into the inner Strawberry sleeve, opening facing up.
Slip the Strawberry-sleeved card into the roomier Mint Choc outer.
The outer opening faces the opposite direction — so the card is sealed both ways.
There's PVC, and there's PVC. Here's the short version of what's safe — and what to avoid.
Rigid PVC (99% of toploaders) is stable, inert and generally safe for long-term storage. That said, PVC-free toploaders are something we care about and are actively looking into.
In the meantime, we still recommend sleeving your cards before loading them — because while the risk is low, it isn't zero.
Soft PVC is the one to watch out for. The plasticisers in soft PVC can migrate and damage finishes — like your cards — over time.
Every Kkumi sleeve is 100% cast polypropylene, which means they're entirely PVC-free and acid-free.