FOUR BROTHERS HOLSTERS
Sig Sauer P365X & P365XL IWB Holster
Sig Sauer P365X & P365XL IWB Holster
Couldn't load pickup availability
Description
Description
Sig Sauer P365 / P365 XL IWB Holster
This Inside the Waistband (IWB) holster for the Sig Sauer P365 and P365 XL is precision vacuum-formed using a CAD-based mold modeled from the actual firearm. Each holster is designed for secure concealed carry, consistent retention, and everyday comfort.
Every holster is formed, trimmed, and folded in-house, then tested with the real pistol to ensure proper fit, function, and retention out of the box.
Precision Fit & Adjustable Retention
The retention system is fully adjustable, allowing you to fine-tune the draw resistance to your personal preference. This holster is compatible with manual safety models and is designed to provide reliable retention during daily carry.
Key Features
- Full sweat guard to protect the firearm and enhance comfort
- Adjustable retention for a customized draw
- Adjustable ride height and cant for personalized concealment
- Constructed from .093" thick thermoplastic for long-term durability
- Minimal material and smooth edges to reduce printing
- Holster profile is cut to accommodate a slide-mounted red dot sight
- Optional Modwing with two inserts to adjust belt leverage and reduce printing
- Proudly made in the USA
Note: Please leave an order note if you need this holster cleared for the P365 XL Spectre Comp with a mounted red dot optic.
Belt Attachment Options
Learn more about the different Inside the Waistband belt attachment options and how they affect concealment and comfort:
Inside Waistband Holster Belt Attachment Options Explained
Compatible Magazine Carriers
Pair your holster with a matching magazine pouch for a consistent carry setup:
More P365 Holster Options
Browse the Sig Sauer P365 Holster Collection
Holster Hardware Recommendation
We strongly recommend applying a removable thread locker to each holster screw upon receipt to prevent hardware from loosening during use.
Frequently Asked Questions
Will this holster fit both the P365 and P365 XL?
Yes. This holster is designed to fit both the Sig Sauer P365 and P365 XL, including manual safety variants.
Is the holster compatible with red dot sights?
Yes. The holster profile is cut to accommodate most slide-mounted red dot optics.
Can I adjust how the holster sits on my belt?
Yes. Ride height and cant are fully adjustable, allowing you to customize comfort and concealment.
What is the Modwing used for?
The optional Modwing applies pressure against the belt to rotate the grip inward, helping reduce printing during concealed carry.
Features
Features
• Full Sweat Guard
• Adjustable Retention
• Adjustable Cant
• Profile cut to allow red dot sights
• Minimal material and smooth edges
• Made from .093" thermoplastic for durability.
• Optional Modwing includes 2 inserts to allow the user to adjust the amount of leverage placed against the inside of the belt to reduce firearm printing
• Proudly Made in the USA
Attachments
Attachments
- Monoblock
- 1 Series Gear Clips
- Ultituck
- Soft Loops
- RCS Overhooks
- Ulticlip
Made in the USA
Made in the USA
Made in America. Founded, located, engineered, manufactured, and shipped from Northern Indiana.
Shipping & Returns
Shipping & Returns
Please review our Four Brothers Holsters Exchange, Return and Refund Policy
Terms of Service
Terms of Service
Please review our Four Brothers Holsters Terms of Service
Share

Review is 5 star great!!! Love how the holster covers the pistol, and the Mono Clip keeps it exactly where you put it.
Great quality as with all 4Bros products.
I recommend them to everyone who wishes to have the best.
Thanks so much, Ed OBrien
This iwb holster for the p365x is nice, great retention, and pretty comfortable wearing it at 3 o'clock in the waist band.its easy to move around and its not bulky or cumbersome. I also got their owb mag holster witch is also very nice!!
This is the perfect holster very comfortable
I’ve tried a few holsters and landed on this one after a buddy got one and liked it. I got mine with the mono block and concealment claw. The holster carries very well and is comfortable. I use the 365xl w/ Romeo compact. It’s fits great. Very happy with the purchase. Holster arrived very quickly.
Review is 5 star great!!! Love how the holster covers the pistol, and the Mono Clip keeps it exactly where you put it.
Great quality as with all 4Bros products.
I recommend them to everyone who wishes to have the best.
Thanks so much, Ed OBrien
This iwb holster for the p365x is nice, great retention, and pretty comfortable wearing it at 3 o'clock in the waist band.its easy to move around and its not bulky or cumbersome. I also got their owb mag holster witch is also very nice!!
This is the perfect holster very comfortable
I’ve tried a few holsters and landed on this one after a buddy got one and liked it. I got mine with the mono block and concealment claw. The holster carries very well and is comfortable. I use the 365xl w/ Romeo compact. It’s fits great. Very happy with the purchase. Holster arrived very quickly.