Ariat Men's Jeans Sizing Guide

Use this guide to find your best fit across Ariat Men's Jeans styles, rises, and inseams.

 SIZE Waist (in/cm)  Seat (in/cm) Thigh (in/cm)
28 29/74 36.5/93 22.25/56.52
29 30/76 37.5/95 22.75/57.79
30 31/79 38.5/98 23.25/59.05
31 32/81 40/100 23.75/60.33
32 33/84 40.5/103 24.25/61.59
33 34/86 42/105 24.75/62.87
34 35/89 43/108 25.25/64.14
35 36/91 43.5/110 25.75/65.41
36 37/94 44.5/113 26.25/66.67
38 39/99 46.5/118 26.75/67.95
40 41/104 48.5/123 27.75/70.48
42 43/109 50.5/128 28.75/73.03
44 45/114 52.5/133 29.5/74.93
46 47/119 53.5/136 30.25/76.84
48 51/130 57.5/146 31/78.74
50 51/130 57.5/146 31.75/80/64
52 53/135 59.5/151 32.5/82.55
54 53/140 61.5/156 33.25/84.45

 

Diagram showing how to measure waist, hip, and inseam.

When you’re shopping Ariat Men’s Jeans, you’re choosing denim built around Ariat’s smart sizing philosophy: fits crafted for real men with real motion. Each M-series code corresponds to a distinct cut that balances comfort, style, and function to match how you live, work, or ride. Ariat sizes are based on waist and inseam measurements with each fit offering a consistent feel from one style to the next—so once you know your favorite M-series cut, finding the right size becomes easier.

The M1 Hansen Straight Jean stands out as a timeless option with a slim-through-seat profile and straight leg that stacks beautifully over boots, ideal for those who want a traditional western silhouette with modern comfort. The M2 Relaxed Boot Cut styles, like the M2 Grayson Fargo Relaxed Fit Bootcut and M2 Bixby Low Rise Relaxed Tapered Bootcut, give extra room for movement and pair naturally with boots. M3 jeans lean more toward a loose, straight-leg work jean ideal for all-day wear, while the M4 Relaxed lineup—such as the M4 Relaxed Hansen Boot Cut Jeans or M4 Relaxed Straight Leg Jeans – Kentucky—offers low-rise comfort with a relaxed seat and thigh for casual or rugged use.

For those who prefer a sleeker style without losing western heritage, M5 Straight Fit Leg Jeans styles provide a slim bootcut silhouette perfect for everyday wear, and M7 Slim Fit Straight Leg offers a modern, streamlined look that layers well with boots or casual shoes. The M8 Modern Fit is Ariat’s slimmest jean, tapering toward the ankle for a contemporary profile that pairs just as well with sneakers as it does with cowboy boots.  Whether you’re buying bootcut western jeans, straight-leg denim, or jeans to wear with boots, Ariat’s range from M1 through M8 gives you options that fit true to size—with most customers finding their normal waist and inseam deliver the best results. At Wei’s Western Wear, we recommend using your usual measurements as a starting point and checking individual product fits for the perfect pair.

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