Ariat Ariat Work FR Men's M4 Shale Boot Cut Flame Resistant Jean - FR properties are inherent to the fabric and will not wash out over time. in 100% FR Cotton (13 oz)

Ariat Work FR Men's M4 Shale Boot Cut Flame Resistant Jean

Ariat

$109.99 - $114.99
(78 reviews) Write a Review
SKU:
10012555
Availability:
Usually Ships in 2 to 3 Business Days
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Ariat Work FR Men's M4 Shale Boot Cut Flame Resistant Jean

Designed for the modern industrial athlete, the Ariat Work FR M4 Shale Jean blends a stylish dark wash with rugged CAT 2 protection. Featuring a relaxed fit and stackable boot cut, these jeans offer unrestricted mobility for linemen and oilfield workers who demand both safety and all-day comfort without compromising on style.

Key Features

13 oz. FR Denim Heavyweight 100% cotton denim provides durable thermal protection.
No-Rub Inseams Comfort inseams prevent chafing during active movement.
Anchored Belt Loops Reinforced loops withstand the weight of heavy tool belts.
Extra-Deep Pockets Front pockets are deepened to securely hold tools and phones.
Hand-Sanded Wash Dark wash with tacking gives a broken-in look and feel.

Benefits

Arc Flash Defense HRC 2 / ATPV 20 cal/cm² rating provides substantial protection against thermal hazards.
Jobsite Mobility Relaxed waist and thigh fit prevents binding during climbing, squatting, or kneeling.
Boot Compatibility Wide boot-cut leg fits easily over heavy-duty safety loggers or western pull-ons.
Long-Lasting Compliance FR properties are inherent to the fabric and will not wash out over time.

Specifications

Brand Ariat
Material 100% FR Cotton (13 oz)
Safety Standards NFPA 70E, NFPA 2112
Arc Rating 20 cal/cm² (CAT 2)
Fit Relaxed (Waist/Hip/Thigh)
Leg Opening Boot Cut
Rise Low Rise

Usage & Fit

  • Relaxed Fit: Generous cut through the seat and thigh allows for full range of motion, ideal for active tasks.
  • Boot Cut: Designed to stack comfortably over western boots and safety toe footwear.

Ideal For

  • Linemen: Climbing and bucket work requiring flexibility and arc flash protection.
  • Oil & Gas: Durable denim withstands rough equipment contact and meets flash fire standards.
  • Welding: Heavyweight cotton denim naturally sheds sparks better than synthetic blends.

Ordering & Support

Shipping Free Shipping on orders over $74.99 (Contiguous U.S.).
Returns Easy returns within 30 days of purchase.
Price Guarantee Low Price Guarantee - We will beat better prices.

Equip yourself with the Ariat M4 Shale FR Jean for a perfect balance of western style and industrial safety. Order today from FR Depot for fast shipping and guaranteed low prices.

Frequently Asked Questions

Q: What’s the difference between Ariat “Shale” and “Flint” in FR jeans?

A: They’re two different denim washes. Shale is the darker wash, while Flint is typically slightly lighter. The main difference shoppers notice is the shade of the denim (lighting and production runs can affect how it looks in person).

Q: Why choose Shale over Flint?

A: If you want a darker look or you’re trying to hide grime and scuffs better, Shale is usually the better pick for jobsite wear.

Q: Is Shale the same jean as Flint, just a different color?

A: If you’re comparing the same Ariat model (for example, M4 Boot Cut vs M4 Boot Cut), then yes — it’s primarily the wash/color that changes. Always verify the listed specs on each product page to confirm ratings and construction details.

Q: Will the M4 boot cut leg opening fit over work boots?

A: Yes. The boot cut leg opening is designed to stack over common work boot profiles, including bulkier safety toe boots. If you prefer a slimmer opening, consider a straight or slim-straight model instead.

Q: Does this jean meet CAT 2 / HRC 2 requirements?

A: This jean is listed with an ATPV rating of 20 cal/cm² and a CAT 2 classification in the product specifications. Always follow your company’s safety program to confirm the correct protection level for your jobsite.

Q: Do FR jeans shrink, and should I size differently?

A: Some shrinkage can happen over time depending on wash and dry heat. For best results, follow the care instructions and avoid high-heat drying to help maintain the fit and length.

78 Reviews

  • 5
    Ariat work pants

    Posted by JERRY CAMPBELL on Sep 14th 2017

    Theses are the best feeling a looking pants I have worn for 28 years of doing linework

  • 5
    Great fit

    Posted by Andrew Dore on Aug 17th 2017

    The fit is great,along with quality.

  • 5
    FR Clothing

    Posted by Tim Mumford on Jun 18th 2017

    very good product

  • 5
    Jeans

    Posted by Charles Aswell on Jun 16th 2017

    Fit well

  • 5
    Ariat Work FR Men's M4 Shale Low Rise Boot Cut Fl

    Posted by Fred Pruitt on May 24th 2017

    I have used FR DEPOT for many of my FR clothing needs. Shipping is fast and customer service is great ! FR DEPOT carries a good selection of FR products at competitive pricing.

  • 5
    Great pants.

    Posted by Joseph Luttrell on May 13th 2017

    Great fit. Nice feel.

  • 5
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    Posted by Fernando Esquivel on Apr 25th 2017

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  • 5
    Ariat Work FR Men's M4 S

    Posted by Wuaren Tyree on Mar 21st 2017

    Fast excellent service with no mistakes and no delays

  • 5
    Phat

    Posted by tom mathine on Jan 16th 2017

    Very nice fitting jeans. Plenty of room for everything