Every millimeter is measured, every stitch is waxed, and every edge is burnished by hand.
8 mm Slim Spine
Measures 8 mm empty and 12.4 mm with 8 cards and 6 bills. It fits in your front pocket so you stop sitting on a wedge.
1.1-Second Thumb Draw
Push your daily card up through the oval exterior slot with one thumb. You can tap and pay without opening the wallet.
13.56 MHz Full Shield
A copper-nickel weave runs through the entire lining and keeps contactless cards, passports, and enhanced IDs quiet.
Full-Grain Cowhide
1.1 mm skived full-grain panels, 7-SPI waxed stitching, and burnished edges. No bonded leather, no paint, no peeling.
How the SlimFold Works
Quick-Draw Thumb Slot
Your daily payment card lives in the exterior sleeve. One thumb push through the oval cutout lifts it about 20 mm clear, ready to tap or hand over.
Organized Interior and ID Window
Open it flat to find tiered leather card slots on one side, a thumb-cut ID window on the other, and a full-length bill pocket that takes US bills flat.
12.4 mm Loaded Profile
With 8 cards and 6 bills inside, the SlimFold closes to 12.4 mm. The RFID shield stays unbroken around your remaining cards.
Full-grain cowhide slim bifold with an exterior quick-access thumb slot, thumb-cut ID window, and full RFID lining. 8 mm thin, built for your front pocket.
Real full-grain cowhide.: Develops a rich patina and won't peel like bonded leather.
Front-pocket thin.: 8 mm empty, 12.4 mm loaded with 8 cards and 6 bills.
One-thumb card access.: Exterior slot gets your daily card out in about a second.
30-day money-back guarantee.: Carry it for a month. If you don't love it, get a full refund.
Backed by our 30-Day Money-Back Trial & Full Cosari Guarantee.
$39.99$79.99Free Tracked Shipping (5–7 Days) Included
In Stock: Delivers in 5–7 Business Days. Free insured US delivery with tracking.
30-Day Money-Back Guarantee plus a full 2-Year Warranty.
Secure Checkout5–7 Day Tracked Delivery30-Day Trial
Description
Materials & Build: Cut from 1.1 mm skived, drum-dyed full-grain cowhide and stitched at 7 stitches per inch with waxed bonded nylon thread. Edges are hand-burnished and sealed, not painted, so they won't flake. Slot lips are folded leather with no raw cardboard backing.
Capacity & Fit: Holds 6 to 10 cards plus up to 10 flat bills. The 110 × 82 mm footprint takes US $1 to $100 bills completely flat with about 8 mm of top clearance. Slots are snug for the first 5 to 7 days, then mold to your card stack.
RFID Protection: A copper-nickel weave lines the full interior and blocks 13.56 MHz contactless reads from credit and debit cards, passports, and enhanced IDs. The exterior thumb slot sits outside the shield, so your daily card is ready to tap while the rest stay protected.
5–7 Day Shipping & 30-Day Returns
Free 5–7 Day US Shipping: Every order ships free with full tracking and delivers in 5 to 7 business days.
30-Day Trial: Try it at home for 30 days risk-free. Need help? Email us anytime at support@buycosari.com.
2-Year Warranty: If anything goes wrong within 2 years, we replace it free of charge or refund your order in full.
Why Choose the Cosari SlimFold?
Bills Lie Flat
The full-length cash pocket takes US bills without folding, with room to spare at the top. No crumpled corners.
ID Out in One Push
The window has a center thumb cutout, so your license slides out with one finger at TSA, bars, and hotel check-ins.
No Pocket Bulge
At 54 grams and 8 mm thin, it disappears in chinos, jeans, and suit trousers without wrecking the line of the pants.
Material: Drum-dyed full-grain cowhide, 1.1 mm skived panels
Stitching: Waxed bonded nylon thread, 7 stitches per inch
Dimensions (closed): 110 × 82 × 8 mm unloaded
Loaded Thickness: 12.4 mm with 8 cards and 6 bills
Weight: 54 g
Capacity: 6–10 cards plus up to 10 flat bills
RFID Shielding: Full-lining copper-nickel weave, blocks 13.56 MHz
Colors: Espresso Brown, Saddle Tan, Obsidian Black
Care & Safety
Full-grain leather darkens and softens with use. Wipe it with a dry cloth as needed, and apply a small amount of leather conditioner every 6 to 12 months to keep the hide supple.
Keep it away from direct heat and prolonged soaking. If it gets wet, let it air-dry at room temperature, away from radiators or hair dryers.
Backed by our 30-Day Money-Back Guarantee & Full Cosari Warranty
Customer Support: support@buycosari.com
Set Up in Under 2 Minutes
Swipe left for steps 2 and 3
1
Load Cards and Flat Bills
Slide your everyday cards into the tiered leather slots and drop your bills flat into the full-length cash pocket.
2
Set Your Daily Card
Put your main tap-to-pay card in the exterior thumb slot and your driver's license in the ID window.
3
Front Pocket and Go
Close it, slide it into your front pocket, and head out. No bulge, and nothing to sit on.
Retire the Brick. Carry the SlimFold.
$39.99$79.99 Free Tracked Shipping (5–7 Days) Included
In Stock – Free 5–7 Day US Shipping · 30-Day Risk-Free Trial.
Frequently Asked Questions
Do US bills fit without folding?
Yes. The full-length cash pocket takes US $1 to $100 bills completely flat, with about 8 mm of clearance at the top. Euros and Canadian notes fit too.
Is it real full-grain leather?
Yes. It's 100% drum-dyed full-grain cowhide with burnished edges. It darkens and softens with use and won't peel the way bonded or PU leather does.
How many cards does it hold?
It's designed for 6 to 10 cards plus up to 10 flat bills while staying slim enough for a front pocket. Our test load of 8 cards and 6 bills measured 12.4 mm.
What does the RFID lining block?
It blocks 13.56 MHz signals used by contactless credit and debit cards, passports, and enhanced IDs. Older 125 kHz office proximity badges work on a different frequency and aren't affected.
Can I tap my card without taking it out?
Push your card about 15 mm up through the exterior thumb slot and it clears the shield, ready to tap. Slide it back down and it's covered again.
Will it fit in front jeans or dress pants?
Yes. At 110 × 82 × 8 mm unloaded, it fits front pockets in jeans, chinos, and suit trousers without corners poking through.
