Mercharness

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Mercharness – Concealed Carry Harness for Kydex Sheaths

The Mercharness is a concealed-carry harness that converts any kydex-sheathed fixed blade into a comfortable, shirt‑level shoulder holster. Designed for minimal profile and maximum comfort, the Mercharness lets you carry concealed beneath a t‑shirt while keeping your tool secure and instantly accessible.

 

Made from MIL‑SPEC 550 parachute cord and engineered for movement and comfort, the Mercharness eliminates metal hardware that pinches, avoids bulk from clips and buckles, and rides with your body for natural carry. It can be configured for strong- or weak-side wear, adjusted on the fly even while being worn, and allows a smooth draw without an additional tie‑down—making it ideal for daily carry, off‑duty concealment, or minimalist EDC setups.

  • Product: Mercharness concealed carry harness
  • Material: MIL‑SPEC 550 7‑Stand nylon parachute cord
  • Compatibility: Works with kydex sheaths that have mounting eyelets (fits many fixed blades and small pistols with compatible sheaths)
  • Carry Options: Strong-side or weak-side shoulder carry; inside‑t‑shirt concealment
  • Hardware: Non‑metallic (no clips or buckles)
  • Adjustment: User‑adjustable while worn for on‑body tuning
  • Carry Style: Shoulder/holster-style with natural body movement
  • Made for: Comfortable extended wear and rapid access
  • Minimal, Concealed Carry: Worn under a t‑shirt for discreet fixed‑blade or small‑pistol carry.
  • MIL‑SPEC Construction: Built from 550 parachute cord for proven strength and longevity.
  • Universal Kydex Compatibility: Designed to work with any Kydex sheath that uses eyelets.
  • Strong- or Weak‑Side Carry: Simple reconfiguration allows ambidextrous mounting.
  • Moves With You: Low‑profile design follows body movement for comfort and concealment.
  • Non‑Metallic & Lightweight: No metal clips or buckles—no pinching, no rattle.
  • No Tie‑Down Required: Enables a fast, smooth draw without additional retention straps.
  • On‑Body Adjustability: Fine‑tune fit and retention while wearing the harness.
  • Comfort for Extended Wear: Ergonomic layout prevents pressure points for all‑day carry.
  • Versatile Use Cases: Ideal for EDC, off‑duty carry, executive protection, or minimalist setups.

The Mercharness is designed for those who value comfort and quick access in their concealed carry system. Its low-profile design ensures that you can carry discreetly, without bulk or discomfort, while the MIL‑SPEC 550 parachute cord ensures durability and flexibility.

Whether you're on duty, off-duty, or just need a minimalist EDC setup, the Mercharness offers a simple, effective solution for concealed carry with maximum comfort and no compromise on speed or accessibility.

 

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11 Reviews

  • 5
    Very Practical

    Published by Edward Shattuck on Nov 14th 2025

    This is an excellent shoulder rig for either the Formido or the Phrike. I'm wearing it right niw and it barely fees like I have it in. Highly recommend for edc.

  • 5
    Excellent

    Published by EDWARD SHATTUCK on Oct 17th 2025

    I like this the best of any other blade carry system. It is simple and cannot be detected. This is an excellent product.

  • 5
    Mercharness

    Published by Bert on Oct 9th 2025

    The Mercharness is working out very well for me. I'm using it for a 3.5 inch fixed blade in a kydex sheath. Here's the instructions on assembling it that I finally found online: https://ch.pinterest.com/pin/135882113754706752/

  • 5
    Mecharness

    Published by Steven Robinson on Dec 15th 2021

    This is so simple and so effective. I am even using this as a stocking stuffer this year to those in my family who are military. Thanks for such a great product that I never thought I needed.

  • 5
    A very versatile carry apparatus that is only limited by your imagination

    Published by Scott A Mehus on May 22nd 2020

    Full disclosure, I have not yet gotten the right EDC fixed blade to use with this carry system as of yet, so my review only reflects the potential I see in this so far. The first and most obvious thing I noticed is that is no one right way use this, as the title states, your options are only limited by your imagination. The first thing I will do before I put this into use, is to re-cut the ends of the paracord and melt/form them into points, as opposed to the flattened manner that they come. The rubberized adjustment rings that come with it are pretty tight out of the box, but I suspect they will loosen with use. I suspect it will be a bit of an effort the first few times I double them through, and haven't decided on the best way to go about this. Right off the bat, I could see the potential of this to literally field carry just about anything within it's size limitations, it's not limited to knives alone. In the description there is a link to a short video that gives you a general idea of where to start, however, I believe that it could have been done a little better by going into some detail of the different ways it can be used, but then again, after examining the Mercharness out, it doesn't take long before you begin to get ideas on how to work with it effectively. For $10 I really don't see how you can go wrong with this, and possibly get a few of them for different knives, and different purposes.

  • 5
    Merc

    Published by Brett Jackson on Jan 29th 2020

    Great product. It works just as advertised. I would like to see a instruction sheet to come with them in the future.

  • 5
    Mercharness

    Published by Nicholas Lombardo on Aug 2nd 2018

    Great quality and functionality .

  • 4
    CQB tool

    Published by Jeremy on Jul 16th 2018

    Great harness for the carry of knives, would be nice to have more direction of how to use, but once figured out it is perfect.

  • 5
    Very cool, very essential

    Published by Unknown on May 26th 2017

    This is a great little harness to have. I use it for my Phrike whenever I go anywhere. It's easy to get to and you'll never know it's there. Neither will anyone else. You cannot afford to be without this very cool piece of equipment.

  • 4
    Great for EDC

    Published by Unknown on Jan 3rd 2017

    I use a fairly small fixed blade for edc and this harness is great for days when I'm not wearing a belt. Very unobtrusive and the sheath hangs free so clothes don't bind up. Only thing keeping it from 5 stars was that the ends were melted into a rather large glob, easily fixable and did keep the paracord from fraying though.