Best Kydex Thickness for Holsters: 0.060" vs 0.080" vs 0.093"
Kydex thickness is one of the first specs a factory will ask about — and one of the easiest to get wrong. Here's how 0.060", 0.080" and 0.093" compare so you can pick the right default for your line.
Key Takeaways
- 0.080" (≈2.0mm) is the industry default for most IWB and OWB holsters.
- 0.060" (≈1.5mm) is thinner and lighter — ideal for slim IWB, appendix and mag carriers.
- 0.093" (≈2.4mm) is stiffer — used for duty, large pistols and heavy-use OWB.
- Pick one default thickness per product line; offer thicker/thinner as a paid upgrade, not three equal SKUs.
Why thickness matters
Sheet thickness controls how rigid the shell feels, how sharp the retention click is, how much the holster weighs on the belt, and how easy it is to mold and trim at scale. Too thin and the holster can flex or lose retention under heat; too thick and IWB comfort and cost suffer. For a refresher on the material itself, see what Kydex is and our Kydex vs Boltaron comparison.
0.060" / 0.06 Kydex — slim and light
0.060 inch (about 1.5mm) is the thinnest common holster sheet. It molds easily, keeps overall package width down, and feels less bulky against the body — which is why brands use it for:
- Slim IWB and deep-concealment designs
- Appendix (AIWB) holsters where every millimeter of print matters
- Magazine carriers and knife sheaths
- Lightweight EDC lines marketed on comfort
Trade-offs: less rigidity than 0.080", slightly softer retention on large pistols, and more care needed in hot car environments. For full-size duty pistols, most factories skip 0.060" and start at 0.080".
0.080" / 0.08 Kydex — the all-round standard
0.080 inch (about 2.0mm) is the default for most commercial Kydex holsters — IWB, OWB and appendix alike. It balances:
- Reliable passive retention with a crisp audible click
- Enough stiffness for one-handed re-holstering
- Wide color and pattern availability
- Predictable tooling and trim at OEM volume
If you are launching a private-label or OEM line and need one thickness to standardize on, choose 0.080". It covers the majority of Glock, SIG, S&W and micro-compact platforms without special handling. Unit cost and MOQ expectations stay in the normal range covered in our manufacturing cost guide.
0.093" / 0.093 Kydex — heavy-duty and duty use
0.093 inch (about 2.4mm) is thicker and stiffer. Factories use it when the holster must resist flex under load or heat:
- Level 2 / Level 3 duty holsters
- Full-size service pistols with weapon lights
- OWB range and competition shells that take hard use
- Customers in hot climates who want extra heat margin (Boltaron is another option here)
Trade-offs: heavier on the belt, slightly harder to mold/trim, and usually a small cost premium. Rarely the right default for a slim IWB line.
Side-by-side comparison
| Thickness | Approx. metric | Best for | Avoid for |
|---|---|---|---|
| 0.060" | ≈1.5mm | Slim IWB, AIWB, mag pouches | Heavy full-size duty setups |
| 0.080" | ≈2.0mm | Most IWB / OWB / optic-ready | — |
| 0.093" | ≈2.4mm | Duty, large pistols, hard use | Ultra-slim concealment lines |
How brands should stock thickness
Don't launch three equal SKUs of every model in every thickness — that explodes inventory. A cleaner OEM / private-label approach:
- Default: 0.080" on all core holsters
- Slim option: 0.060" only on IWB / appendix / mag carriers where buyers ask for it
- Duty option: 0.093" (or Boltaron) as an upgrade on OWB and duty SKUs
Tell your factory the default up front when you request a quote — it keeps samples and bulk runs consistent. For how retention interacts with shell stiffness, see holster retention explained.
Common mistakes
- Using 0.060" for everything to save a few cents — soft retention complaints follow on larger guns.
- Speccing 0.093" for slim IWB — buyers feel the bulk and return rates climb.
- Mixing thicknesses in one SKU name — QC and reorders get messy; put thickness in the SKU or option field.
- Ignoring climate — hot-car markets may prefer 0.080"+ or Boltaron over the thinnest sheet.
Frequently asked questions
What is the best Kydex thickness for holsters?
0.080 inch (about 2mm) is the best all-round thickness for most IWB and OWB holsters. Use 0.060" for slim concealment and mag carriers, and 0.093" for duty or heavy-use OWB.
Is 0.06 Kydex strong enough for a holster?
Yes for slim IWB, appendix carry and magazine pouches. For full-size pistols, light-bearing duty holsters or high-heat environments, 0.080" or 0.093" is usually a better choice.
Does thicker Kydex mean better retention?
Thicker sheet is generally stiffer and holds molded retention more firmly, but retention also depends on mold design, trigger-guard geometry and adjustable tension screws — thickness alone is not the whole story.
Can I order different thicknesses from the same manufacturer?
Yes. Most OEM factories stock 0.060", 0.080" and 0.093" sheet. Confirm availability for your color or pattern, then set one default thickness per product line to keep MOQ and inventory simple.