The first brand in our new lineup was TCB Jeans, a company out of Kojima, Japan that builds its reputation on craftsmanship, historical research, and dedication to the original spirit of American denim.
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The leg opening measurement is a critical factor in how your jeans fit over your shoes and shape your overall look. Whether you’re shopping online, comparing styles, or getting your jeans tapered, knowing how to measure the leg opening properly ensures accurate sizing and a better fit.
In this guide, we’ll break down the correct method for measuring the leg opening on jeans—just like we do in our professional denim alteration shop at Williamsburg Garment Company.
📏 What Is the Leg Opening on Jeans?
The leg opening is the width of the bottom hem of a pant leg. This measurement determines how fitted or wide the jeans will fall over your shoes. Slim, straight, bootcut, and wide-leg jeans all have different leg opening sizes, which impact the overall silhouette of the jeans.
🔥 Why Does It Matter?
✅ Helps compare different fits when buying jeans online
✅ Essential for tapering alterations to ensure a balanced look
✅ Impacts how jeans sit on top of shoes
🛠 Step-by-Step: How to Measure the Leg Opening on Jeans
Follow these simple steps to accurately measure the leg opening of your jeans.
1️⃣ Lay the Jeans Flat
- Place your jeans on a flat surface, like a table or the floor.
- Smooth out any wrinkles, but do not stretch the fabric.
🔽 See the diagram below for proper positioning:
[Insert drawing: Jeans laid flat with a focus on the hem area]
2️⃣ Align the Hem Evenly
- Make sure both layers of fabric at the bottom hem are lined up evenly.
- Some jeans, especially washed or worn pairs, may have twisting in the leg—try to align them as close to their natural shape as possible.
🔽 Illustration showing the hem properly aligned:
[Insert drawing: Close-up of the bottom hem, ensuring both sides are even]
3️⃣ Measure Across the Bottom Hem
- Use a soft measuring tape and place it edge to edge across the leg opening.
- Do not curve or wrap the tape—measure in a straight line.
- Write down this measurement.
🔽 Example of correct measuring technique:
[Insert drawing: Measuring tape laid straight across the hem from one edge to the other]
4️⃣ Double the Measurement
- Since jeans are measured flat, you’ll need to double the number to get the full leg opening circumference.
- Example: If your measurement is 8 inches, the total leg opening is 16 inches.
🚨 Common Mistakes to Avoid
🔴 Not laying the jeans completely flat – Wrinkles and folds can throw off your measurement.
🔴 Measuring diagonally – Always measure straight across for accuracy.
🔴 Ignoring leg twisting – Some jeans may have a twist in the leg seam due to shrinkage or wash effects. Align them properly before measuring.
👖 How the Leg Opening Affects Fit
The leg opening measurement is key to understanding different jean styles:
- Slim Fit Jeans – Narrow leg opening (usually 12″–14″)
- Straight Fit Jeans – More room at the ankle (14″–16″)
- Bootcut Jeans – Slight flare to fit over boots (16″–18″)
- Wide-Leg Jeans – Loose fit with a larger leg opening (18″+)
📢 Thinking about tapering your jeans? If you want a smaller leg opening, professional tapering is the best way to achieve a clean, proportional fit. Check out our denim tapering service for expert alterations.
🎥 Watch the Video: Measuring the Leg Opening
For a full demonstration, watch our step-by-step video on how to measure the leg opening on jeans featuring Maurice Malone of Williamsburg Garment Company.
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In our first video, I explain the two main reasons why jeans legs twist: poor sewing at the factory and uneven fabric shrinkage, or sometimes a mix of both.
In this video, I’ll show you exactly how we professionally fix a twisted leg on jeans, ensuring that they fit comfortably with seams that stay straight. Using expert techniques and specialized machinery, we rework the leg (tapering it) to correct the twist, making your jeans feel just right again.
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The same inseam length can look different on various styles of jeans and pants. For instance, jeans or pants with identical waist measurements and inseam lengths but different rise measurements will fit differently. A pair with a 1-inch longer rise may result in a hem that falls 1 inch lower.
Similarly, the waist opening measurement affects where the jeans or pants sit on your body. Larger waist openings cause them to sit lower on your hips, making them appear longer even if the rise and inseam are the same.
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Repairing Belt Loops: Why Quality Matters
Belt loops are one of those essential details on your pants that you probably don’t think about—until one rips off, that is. Whether you’re dealing with jeans, workwear, or your favorite pair of chinos, a broken belt loop can be a real inconvenience. And while you might think, “I can sew that back on myself,” replacing belt loops isn’t as straightforward as it seems.
Sure, home sewing kits and patch jobs might seem like a quick solution, but the reality is that unless you’ve got the right tools and techniques, the results can look sloppy. A DIY job often lacks the durability of professional stitching, leading to issues like weak attachment, uneven loops, or mismatched stitching. Similarly, while some tailors may offer repairs, they often work with lighter fabrics and simple straight stitching, which isn’t quite suitable for the heavy-duty wear of jeans or workwear.
For example, jeans and other tough materials like twill, canvas, or corduroy use a special attachment called a bar tack to secure belt loops. This technique reinforces the stress points, making them durable enough for everyday wear and tear. A typical tailor using a standard sewing machine may not have the equipment to replicate this level of strength.
When done correctly, replacing a belt loop involves using industrial-grade machinery that can handle thick fabric layers, particularly at the seam, where multiple layers overlap. For as little as $10, you can reattach your broken loops at Williamsburg Garment Company, and for $20, new replacement loops can be crafted and installed.
To learn more about our professional belt loop repair service, visit our page for additional details on how we can help you get your pants back in top shape without the hassle of DIY fixes or poor-quality repairs.
By leaving it to the pros, you ensure a clean, durable fix that blends seamlessly with your garment, maintaining its integrity and style for the long haul.
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