Rebar M4 DuraStretch Straight Leg in Blackstone by Ariat
Ariat denim fit & size guide
Men’s M fits
| Fit | Seat & thigh | Leg shape |
|---|---|---|
| M1 | Vintage, closer fit | Straight |
| M2 | Traditional, roomy fit | Tapered bootcut |
| M3 | Loose, extra room | Straight |
| M4 | Relaxed, extra room | Bootcut or straight |
| M5 | Straight, less room than relaxed | Straight |
| M7 | Slim, close fit | Straight |
| M8 | Modern, slim fit | Narrow opening |
M4 does not mean one identical cut. Bootcut widens toward the hem; straight leg stays more even below the knee. Workwear versions can also differ in rise and construction.
Read Ariat’s complete men’s fit guide ↗
Choosing your size
Measure your waist, fullest hip and inside leg. In a size such as 32 × 34, the first number is waist and the second is inseam, in inches. Try the length with the boots or shoes you plan to wear.
Regular, Rebar and FR are separate shopping groups. FR means flame-resistant; Rebar alone does not indicate an FR rating. Check the selected garment’s stated rating for your workplace requirements.
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Product Description
Product Description
Engineered for long days and hard work, the Ariat Rebar M5 Slim Straight Leg Jeans in Carbine deliver superior comfort, performance, and durability. Part of Ariat's rugged Rebar Workwear collection, these jeans are designed with a mid-rise waist and slim fit, giving them a modern look without compromising functionality.
Made from ToughMax(TM) high-stretch denim, these jeans are 2X more durable and flexible than traditional denim—built to move with you and hold up to intense wear and tear. The dark wash provides a clean, professional appearance while the straight leg fits comfortably over most work boots.
Shipping & Returns
Shipping & Returns
We carefully pack and ship orders from Hope, Arkansas. Orders are processed as quickly as possible so you can start enjoying your purchase sooner.
Need to make a return? Visit our Returns Page for complete details and eligibility requirements.

