guide · japanese denim · raw denim · selvedge ·Jul 04, 2026

Left-Hand vs Right-Hand Twill: How Weave Direction Changes Your Denim (2026)

Q: What is leg twist and does twill cause it?

Leg twist is the slight spiraling of the seams as twill denim relaxes. Right-hand and left-hand twill twist in opposite directions; broken twill avoids it entirely. It is a minor, often charming vintage trait.

The difference between left-hand and right-hand twill is the direction of the diagonal weave lines: right-hand twill runs from lower-left to upper-right and fades sharp and defined, while left-hand twill runs from lower-right to upper-left and turns softer, fuzzier, and more muted after washing. Neither is better — the weave direction simply gives your denim a different hand and fade personality.

What Is Twill Direction?

Denim is a twill fabric, meaning its weave forms diagonal lines rather than the flat grid of a plain weave. The direction those diagonals lean defines the twill type. Right-hand twill (RHT) has diagonals running up to the right, like the forward slash in "/". Left-hand twill (LHT) has diagonals running up to the left, like a backslash. There is also broken twill, which zig-zags to eliminate any diagonal bias entirely.

You can read the twill direction by looking closely at the face of the denim and following the diagonal lines. It is one of the most fundamental — and most overlooked — characteristics of any pair of jeans.

History and Background

Right-hand twill is the historical default and the most common weave, used famously by Levi's. Its tighter diagonal produces crisp, well-defined fades. Left-hand twill became associated with Lee, whose jeans used it for a softer feel. Wrangler, meanwhile, popularized broken twill to prevent "leg twist," the tendency of twill fabric to spiral slightly around the leg over time.

Japanese brands weave all three, treating twill direction as another tool for engineering a specific look and feel. At Japan-Denim.com, we see LHT in particular as a hallmark of thoughtful Japanese denim — a deliberate choice for a softer hand and a distinctive, cloudy fade.

Deep Dive: How Weave Direction Changes Denim

Hand and feel: Left-hand twill tends to soften more after washing, developing a fuzzier, more relaxed surface and a notably softer hand. Right-hand twill stays a touch crisper and firmer. This is why LHT denim often feels broken-in sooner.

Fades: Right-hand twill generally fades with sharper, higher-contrast definition, making it a favorite for fade chasers who want crisp honeycombs and whiskers. Left-hand twill fades softer and cloudier, with more muted, hazy contrast — a look many enthusiasts specifically seek for its unique character.

Leg twist: All diagonal twill can develop leg twist as it relaxes, and the direction of the twist follows the weave. Broken twill avoids this entirely, while RHT and LHT twist in opposite directions. It is a minor, often charming vintage trait rather than a flaw.

At Japan-Denim.com, we tell US buyers that twill direction is a matter of taste, not quality: choose right-hand twill for crisp, high-contrast fades and a firmer hand, or left-hand twill for a softer feel and a distinctive, cloudy fade.

Diagram comparing right-hand, left-hand and broken twill denim weave directions — Right-hand twill leans up to the right and fades crisp; left-hand twill leans up to the left and fades soft and cloudy.

Best Options: Twill Direction Picks

Right-Hand Twill: Iron Heart IH-666s

Best for: Crisp, high-contrast fades and a firm hand
Key specs: Right-hand twill, 21oz sanforized selvedge, slim-straight
Price range: $320–$390 USD
Why we recommend it: Classic RHT delivers the sharp, defined fades most fade chasers picture.

Left-Hand Twill: Pure Blue Japan / LHT Selvedge

Best for: A soft hand and cloudy, distinctive fades
Key specs: Left-hand twill, ~14oz selvedge, deep indigo, slim-tapered
Price range: $260–$320 USD
Why we recommend it: LHT softens beautifully and fades with a unique, hazy character.

Broken Twill: Vintage-Style Selvedge

Best for: No leg twist and a balanced fade
Key specs: Broken twill weave, mid-weight selvedge
Price range: $180–$300 USD
Why we recommend it: Broken twill stays straight on the leg and offers a middle-ground fade.

Weave	Diagonal Direction	Hand	Fade Character
Right-hand twill	Up to the right (/)	Firmer, crisp	Sharp, high-contrast
Left-hand twill	Up to the left	Softer, fuzzier	Cloudy, muted
Broken twill	Zig-zag (no bias)	Balanced	Even, no leg twist

Two Japanese selvedge denim swatches with different twill weave directions and fades — Weave direction gives each fabric a different hand and fade — crisp for right-hand, soft and cloudy for left-hand twill.

Frequently Asked Questions

Q: What is the difference between left-hand and right-hand twill?
A: It is the direction of the diagonal weave lines. Right-hand twill runs up to the right and fades crisp and firm, while left-hand twill runs up to the left and softens into a fuzzier, cloudier fade after washing.

Q: Is left-hand or right-hand twill better?
A: Neither is better; it is a matter of taste. Right-hand twill gives sharper, higher-contrast fades and a firmer hand, while left-hand twill offers a softer feel and a distinctive, hazy fade.

Q: How can I tell which twill my jeans are?
A: Look closely at the face of the denim and follow the diagonal weave lines. If they lean up to the right it is right-hand twill; up to the left is left-hand twill; a zig-zag with no clear diagonal is broken twill.

Q: Does left-hand twill fade differently?
A: Yes. Left-hand twill fades softer and cloudier with more muted contrast, while right-hand twill fades with crisper, higher-contrast definition. Many enthusiasts choose LHT specifically for its unique fade.

Q: What is leg twist and does twill cause it?
A: Leg twist is the slight spiraling of the seams around the leg as twill denim relaxes. Right-hand and left-hand twill twist in opposite directions; broken twill avoids it entirely. It is a minor, often charming vintage trait.

Q: Which brands use left-hand twill?
A: Left-hand twill is historically associated with Lee and is used by various Japanese brands, including selvedge from makers like Pure Blue Japan, who value its soft hand and cloudy fades.

The Bottom Line

Twill direction is one of denim's most fundamental yet overlooked traits. Right-hand twill gives you crisp, high-contrast fades and a firmer hand; left-hand twill gives you a softer feel and a distinctive, cloudy fade; broken twill keeps the leg straight. None is better — it comes down to the look and feel you want. Knowing the difference lets you choose denim that fades exactly how you like.

At Japan-Denim.com, we stock selvedge in all three weaves so you can pick your ideal hand and fade. Explore our raw denim collection and choose the twill that suits your style.