Guardality fit in a slim cardholder with 4 cards already?

Should be fine, I think. That card is really thin, closer to a thick piece of plastic than an actual extra card. I’d guess it’ll fit without making it noticeably bulkier.

I’ve got 5 cards in mine with the Guardality and it’s tight but still closes fine. Just depends if you like a really slim feel or don’t mind a little extra bulge. I personally don’t even notice it after a day.

I think it really depends on the cardholder. Some of those slim ones are already at their limit with 4 cards, so the Guardality might make it bulge a little. I’ve had ok luck with mine, but I only keep 3 cards in there.

It’s thin enough that you’ll probably be fine. I’ve got mine in a pretty snug holder and it didn’t really change the feel much. If it’s already borderline uncomfortable then maybe not, but otherwise I’d say go for it.

I’d say just go for it, you probably won’t even notice the extra thickness once it’s in there.

I think it’ll probably be fine. These cards are pretty thin, so unless your cardholder is already stretched to the max, you likely won’t notice much difference. I’d just give it a try.

I’d probably just try it and see. If it’s already snug you’ll notice it a bit, but these cards are thin enough that it might not bother you as much as you think.

I'd lean toward Eddie___K and Tommy Burrel here: if it's already snug, you'll feel the extra layer, and that's a fit issue, not a sign the card doesn't work. A practical test I'd use: take one card out, slide the Guardality in its place, and see if the holder still closes comfortably before committing to all five. If it's borderline, the tighter fit may bug you more than the protection is worth in that particular holder.