RUNBOX KH037 Slim RFID Pop-Up Bifold Wallet

RFID: RUNBOX KH037 is a bifold wallet with a pop-up card mechanism, an ID window and a full-length cash compartment. Its claimed capacity of 11–13 cards pairs quick card access with everyday cash storage, though customer feedback is mixed on whether the wallet feels slim when loaded.

At a glance

Pop-up mechanism is described as fanning cards out after pressing a side button.
Listing claims room for 11–13 cards, including one clear ID window, plus a full-length cash compartment.
Magnetic flip cover and RFID blocking are listed features.
The listing claims testing for 10,000+ cycles. This is a manufacturer claim, not an independently verified result.

Price

$31.97Save 20%

Reference price: ~~$39.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Card fan-out access may make it quicker to select a card than searching through a conventional stack.
The card case, ID window and full-length cash compartment combine card and paper-money storage.
The magnetic cover is designed to keep the bifold closed.

Cons

The reported 11–13-card capacity can make a supposedly slim front-pocket wallet feel bulky, and customer feedback on slimness is mixed.

Technical specifications

17 specifications

Identity
Brand	RUNBOX
Model	Kh037

Dimensions and installation
Form factor	Bi-Fold
Dimensions (D × W × H)	0.8"D x 2.8"W x 4.2"H

Materials and protection
Material listed	Aluminum, Carbon Fiber, Leather, Metal
Leather type	Cowhide Leather
Lining	Leather
RFID blocking claim	Helps protect compatible credit and debit cards against unauthorized 13.56 MHz scans

Storage and design
Claimed card capacity	11–13 cards ( including 1 clear ID Window )
Compartments	12
Sections	5
Wallet compartments listed for	Business Card, Credit Card, ID Card, Paper Money, Photo
Closure	Magnetic
Color	Carbon Fiber Black
Pattern	Solid

Care and warranty
Care instructions	Dry Cloth Clean
Manufacturer warranty description	Limited Lifetime Warranty

Who is it for?

A good fit for

People who want pop-up access to several cards while keeping cash and an ID in one bifold wallet.
Front-pocket carriers who are comfortable with the wallet's claimed capacity and possible added bulk when filled.

Less suited to

Buyers prioritizing a reliably very slim feel, especially when carrying many cards.

RUNBOX KH037 Slim RFID Pop-Up Bifold Wallet · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 73 ratings

5 stars76%76%
4 stars14%14%
3 stars9%9%
2 stars1%1%
1 star0%0%

Customer feedback includes positive impressions of overall quality, but opinions on slimness differ, with some saying the wallet stays slim and others finding it not slim at all. For buyers carrying many cards, that difference matters because the listing claims capacity for 11–13 cards plus cash. Aggregate ratings lean positive overall, but they do not establish how the wallet will feel in a particular pocket or when fully loaded.

Positive themes

Customers report positive impressions of quality.

Mixed feedback

Feedback on slimness is mixed, with some customers finding it slim and others saying it is not slim.

Frequently asked questions

How many cards does the RUNBOX KH037 claim to hold?

The listing claims 11–13 cards, including one clear ID window. It also lists a full-length cash compartment.

Does the KH037 have RFID blocking?

Yes. The listing says it helps protect compatible credit and debit cards against unauthorized 13.56 MHz scans. This is a manufacturer claim.

Is the wallet guaranteed to feel slim?

No. The capacity and front-pocket positioning are listing claims, while customer feedback on slimness is mixed. How it feels may depend on how many cards you carry.