About Sleevewise
An independent guide to what fits, built for collectors who'd rather measure than guess.
Sleevewise answers one kind of question: will this protect that card? Sleeve, top loader, magnetic holder, binder, box, display. Each layer has a size and a limit, and the makers publish most of them, scattered across hundreds of product pages. We collect those numbers in one place and check them against each other.
What we do
- Track 60 accessories from Ultra PRO, Vault X, Dragon Shield, KMC, BCW and EVORETRO, with each spec tied to the maker's page and the date we checked it.
- Run every product through the Fit Finder, a fixed set of rules built from those specs.
- Write guides that answer the common fit questions, and say plainly where makers publish nothing.
What we don't do
- We don't invent test results. We haven't lab-tested these products, and we don't claim we have.
- We don't publish star ratings, scores or prices. Prices change daily and are set by the stores.
- We don't give grading or investment advice.
Editor
Guides are written and maintained by J. Rowan, the pen name used by the editor across our small group of independent buying-guide sites. Corrections are welcome: see contact.
Read how we choose and verify products and our disclosure.