Material Architecture

MATERIALS

Every millimeter justified.

Every material in a COLDFIRE wallet performs a structural or protective function. Nothing decorative.

The System

SIX MATERIALS. ONE STANDARD.

01
Flexible Carbon Fiber
CARBITEX CX6 / OMNIFLEX
Structural Shell · GT Rebel

Flexible carbon composite that flexes without cracking and returns to exact form. Zero stretch under load. Originally developed for aerospace and performance footwear.

10K+
flex cycles
0%
deformation
Used in · Strike · Flex · Scout One · BladeX · Stealth
02
Kangaroo Performance Leather
K-LEATHER
Exterior Shell · All Series

The strongest natural leather available by weight. Parallel fiber structure holds full strength without splitting under daily card pressure. Does not stretch. Does not deform.

10×
vs cowhide tensile
50%
stronger than goatskin
Used in · Strike · Flex · Scout One · BladeX · Stealth
03
Contactless Protection
RFID DATA ARMOR
Copper-Nickel Shield · All Series

A copper-and-nickel-coated conductive layer, 0.08mm thin, built in during construction. Blocks 13.56 MHz RFID and NFC by material, not by removable sleeve.

0.08mm
shield thickness
13.56MHz
blocked band
Used in · All COLDFIRE Wallets
04
Dyneema® Ripstop Lining
DYNEEMA LINING
Interior Structure · Strike · Flex · BladeX

Dyneema® ripstop woven from ultra-high-molecular-weight polyethylene fibers. 15× stronger than steel by weight. Laser-cut only.

15×
stronger than steel
Used in · Strike · Flex · BladeX
05
Aerospace Hardware
TI-6AL-4V TITANIUM
Logo Hardware · Strike · Flex

Ti-6Al-4V, the alloy used in jet engine components and surgical implants. Machined into the logo hardware on every Strike and Flex wallet. Does not corrode. Does not wear.

G5
aerospace grade
45%
lighter than steel
Used in · Strike Series · Flex Series
06
Bonded Seam Thread
AMANN STRONGBOND
Stitch Integrity · All Series

Bonded Polyamide 6.6 filament: fused, not just twisted, so seams hold under multidirectional stress without fraying. OEKO-TEX Standard 100 certified.

PA 6.6
bonded filament
Used in · All COLDFIRE Wallets
01
Flexible Carbon Fiber

CARBITEX CX6 / OMNIFLEX

Structural Shell · GT Rebel System

Standard carbon fiber is rigid and brittle. Carbitex CX6 reinvented it as a flexible composite. Tensile strength intact, controlled flex added. Used in elite footwear and aerospace applications before carry.

Zero stretch. Returns to exact form after every flex cycle. Validated through repeated load-cycle testing by Carbitex.

Tensile strength by material
Carbitex CX6
Rigid CF insert
Cowhide leather
Carbitex CX6 flexible carbon fiber sheets landscape macro — COLDFIRE wallet structural shell
Strike · Flex · Scout One · BladeX · Stealth
02
Kangaroo Performance Leather

K-LEATHER

Exterior Shell · All Premium Series

Kangaroo hide has a parallel, densely packed fiber structure that gives it 10× the tensile strength of cowhide at a fraction of the thickness. Used for decades in professional cycling gloves, boxing equipment, and high-performance sporting goods.

In COLDFIRE wallets it forms the exterior shell. The surface that faces daily pocket friction and edge stress. Does not stretch under card pressure.

Tensile strength vs other leathers
K-Leather (kangaroo)
Goatskin
Full-grain cowhide
COLDFIRE wallet interior K-Leather kangaroo lining with card slots and debossed logo
Strike · Flex · Scout One · BladeX · Stealth
03
Contactless Protection

RFID DATA ARMOR

Copper-Nickel Conductive Layer · 13.56 MHz

Modern payment cards, access cards, and passports broadcast on 13.56 MHz RFID/NFC. RFID Data Armor is a copper-and-nickel-coated conductive layer, 0.08mm thin, laminated into the wallet during construction. Not a removable sleeve. Not added afterward.

The conductive metal absorbs and reflects the signal, so cards can't be read through the wallet. No app. No battery. No maintenance. It blocks by material, not by gimmick.

What it blocks
Payment cards (13.56 MHz)
NFC access cards
ePassport chip
COLDFIRE RFID Data Armor — 13.56 MHz blocking layer built into every wallet
All COLDFIRE Wallets
04
Dyneema® Ripstop Lining

DYNEEMA LINING

Dyneema® Ripstop · Interior Structure

The lining is Dyneema® ripstop — a woven composite of ultra-high-molecular-weight polyethylene fibers in a reinforced grid structure. 15× stronger than steel by weight. Cut-resistant. Zero stretch.

Dyneema ripstop requires laser cutting — standard blades cannot process it cleanly. Every panel is precision-cut, which is why the interior holds its geometry under years of card pressure.

Strength-to-weight vs other fibers
Dyneema® ripstop
Kevlar®
High-strength steel
Dyneema ripstop woven composite landscape — laser-cut interior lining COLDFIRE wallets
Strike Series · Flex Series · BladeX
05
Aerospace Hardware

TI-6AL-4V TITANIUM

Logo Hardware · Strike · Flex

Ti-6Al-4V, the alloy used in jet engine components and surgical implants. Grade 5, the most widely used titanium alloy globally, accounting for ~50% of all titanium production.

45% lighter than steel at comparable tensile strength. Does not corrode. Does not wear. Does not flex out of tolerance.

Strength-to-weight ratio by metal
Ti-6Al-4V (Grade 5)
High-strength steel
Aluminum 7075-T6
COLDFIRE Ti-6Al-4V titanium badge on carbon fiber and K-Leather — aerospace grade hardware
Strike Series · Flex Series
06
Bonded Seam Thread

AMANN STRONGBOND

Bonded Polyamide 6.6 · All Series

The seam is the first thing to fail on an ordinary wallet. STRONGBOND is a bonded Polyamide 6.6 filament: fused, not just twisted, so the stitch holds under multidirectional stress without fraying.

OEKO-TEX Standard 100 certified. The same thread class used in performance footwear and luggage built to survive. Built into every seam we sew.

Seam strength vs standard thread
STRONGBOND (bonded PA 6.6)
Standard polyester
Cotton-wrapped
Amann Strongbond military-grade thread spools — bonded nylon stitching used in COLDFIRE wallet construction
All COLDFIRE Wallets
Material Deployment

WHICH WALLET. WHICH MATERIALS.

GT Rebel · Flagship
Strike Series
Classic bifold · Back pocket · Jacket
CX6 CarbonK-LeatherRFID ArmorDyneemaTi-6Al-4VSTRONGBOND
GT Rebel · Compact
Flex Series
Vertical bifold · Front pocket
CX6 CarbonK-LeatherRFID ArmorDyneemaTi-6Al-4VSTRONGBOND
GT Rebel · Launch
Scout One
Sleeve · 25g · 4–5 cards
CX6 CarbonK-LeatherRFID ArmorDyneemaTi-6Al-4VSTRONGBOND
GT Rebel · Entry
BladeX Series
Bifold · Decorative carbon strip
CX6 CarbonK-LeatherRFID ArmorDyneemaTi-6Al-4VSTRONGBOND
GT Rebel · Minimal
Stealth
Horizontal sleeve · 20g · 5 cards
CX6 CarbonK-LeatherRFID ArmorDyneemaTi-6Al-4VSTRONGBOND
Premium Leather
Snake Eye
Relief leather · Classic bifold
CX6 CarbonK-LeatherRFID ArmorDyneemaTi-6Al-4VSTRONGBOND
Six Materials. One Standard.

PERFORMANCE.
NOT VANITY.

The price changes. The materials don't.

Built without compromise. Documented without exception.

Explore GT Rebel