Isaac Stretch Jersey Sports Jacket - White
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Size Guide - Suit Jackets
How to Find Your Perfect Jacket Fit
This guide helps you measure a jacket you already own to find the best possible fit from our chart. For the most accurate results, it is highly recommended to measure a similar-style jacket that fits you well, rather than measuring your own body. This method accounts for the cut, style, and "ease" (the extra room needed for movement) of the garment.
What You'll Need:
A jacket of a similar style that fits you perfectly.
A flat measuring tape (or tailor's tape).
A flat surface, like a table or the floor.
Step-by-Step Measurement Guide
Lay your jacket flat on a surface, button it up, and smooth out any wrinkles before you begin.
A - Shoulder
How to Measure: Locate the seams on top of the shoulders where the sleeves are attached to the body of the jacket.
Action: Measure in a straight line across the back of the jacket from one shoulder seam to the other.
B - Chest
How to Measure: Find the lowest point of the armhole seams (the "pit").
Action: Measure in a straight line from the seam under one armpit to the seam under the other.
Important: The chart shows the full chest circumference. You will need to double the number you measured to get the correct value to compare with the chart. (For example, if you measure 50cm, your chest value is 100cm).
C - Waist
How to Measure: The waist of a jacket is typically the narrowest point of the torso, usually located near the top button on a 2-button jacket.
Action: Measure in a straight line from one side seam to the other across this narrowest point.
Important: Just like the chest, you must double this measurement to get the full waist circumference to compare with the chart.
D - Length
How to Measure: This is the total length of the jacket back.
Action: Turn the jacket over so the back is facing up. Flip the collar up and measure straight down the center of the back from the seam where the collar attaches to the body, all the way to the bottom hem.
E - Sleeve
How to Measure: This measures the outer length of the sleeve.
Action: Start your measurement at the top shoulder seam and measure straight down along the top of the sleeve to the end of the cuff.
How to Use the Chart
Record Your Measurements: Write down your measurements for A, B, C, D, and E in centimeters.
Compare to the Chart: Look at the size chart and find the row where your measurements most closely match.
Prioritize Key Fits: The Shoulder (A) and Chest (B) measurements are the most critical for a good fit. It's better to have a jacket that fits well in the shoulders and chest, as the waist and sleeves can often be more easily altered by a tailor.
If You're Between Sizes: It is generally recommended to choose the larger size. It is much easier for a tailor to make a jacket smaller than to make it bigger.