Leather Jacket Size Grading: How UK, EU and US Brands Brief an Indian Factory
Updated: 20 hours ago
Leather jacket size grading is the set of rules that scales your approved base-size pattern up and down into every size you sell. For UK, EU and US brands working with an Indian factory, it means sending one base size, a measurement chart, the increment for each measurement and the tolerances, then approving a size set before bulk.
Key Takeaways
Updated October 2026: grading is briefed from one approved base size, usually a men's M (UK/US 40 chest) or a women's UK 10 / EU 38 / US 6.
EU size labelling is built on body chest or bust girth in steps of about 4 cm (EN 13402); UK and US men's jackets are usually labelled in 2-inch chest steps.
Leather has little stretch and comes in hides of limited size, so extended sizes can need extra seams and more leather per piece.
A grade rule sheet should list every point of measure, its increment per size and its tolerance, typically ±1 cm on chest and length.
Approve a size set (one sample per size) before bulk, and have measurements checked at AQL inspection.
What is leather jacket size grading?
Grading is how a factory turns one fitted pattern into a full size range without changing the design. The pattern maker takes your base size and adds or removes a set amount at each point of measure (POM), such as chest, waist, back length, shoulder and sleeve.
The base size is fitted on a person or dress form first. Only after that fit is right should the other sizes be graded, because any fit problem in the base size is copied into every size. Put the grade rules in the same document as your construction notes; our guide to writing a leather tech pack for an Indian factory shows where they sit.
How do UK, EU and US leather jacket sizes compare?
They label the same body in different ways, so agree one master chart and show each market's label against it. The table below shows the usual conventions; every brand's own block differs, so treat the equivalences as a starting point, not a rule.
Market | How jackets are usually labelled | Typical step between sizes | Reference standard | Example equivalence |
|---|---|---|---|---|
UK | Men: chest in inches (38, 40, 42). Women: dress sizes (8, 10, 12) | Men about 2 in (≈5 cm) chest | BS EN ISO 8559-2:2025 for size designation | Men 40 / Women 10 |
EU | Men: tailoring sizes (48, 50, 52) or chest/bust girth in cm. Women: 36, 38, 40 | About 4 cm chest or bust | EN 13402 / EN ISO 8559-2 | Men 50 / Women 38 |
US | Men: chest in inches with Short, Regular, Tall. Women: numeric sizes (4, 6, 8) | Men about 2 in chest | ASTM D6240/D6240M-24a (men's body measurements) | Men 40R / Women 6 |
All markets | Letter sizes (S, M, L, XL) mapped to the brand's own chart | Set by the brand | Brand size chart | M ≈ 40 chest in many men's charts |
Sources, as of October 2026: the BSI listing for BS EN ISO 8559-2:2025 (published 30 September 2025), which sets primary and secondary dimensions for size designation of clothes, and the ASTM D6240/D6240M-24a listing, which gives body measurements for adult men in chest sizes 34 to 52, Short, Regular and Tall. Under EN 13402, men's jackets are designated by chest girth and women's by bust girth.
Why is grading a leather jacket harder than grading a fabric one?
Because leather is a natural hide, not a roll of cloth. The pattern has to fit the hide, the material barely stretches, and thickness changes how much ease each size needs.
Hide size limits panel length. A long back panel in a 2XL or 3XL may not fit within the best part of a hide, so the factory may add a yoke or seam. Agree in advance where extra seams are allowed.
Very little stretch. Knits forgive a tight size; leather does not. Build enough ease into chest, armhole and sleeve, and check it on the size set, not just the base size.
Thickness changes the fit. A thicker cowhide needs more ease than a thin lambskin for the same body size, so do not reuse a fabric jacket's grade rules without a test.
More leather per piece in bigger sizes. Consumption rises with size, which can change the price of extended sizes. Ask for the leather consumption per size in the quotation.
Matching panels across sizes. Colour and grain should match across all panels of one jacket, which is harder when big panels must come from fewer hides.
For leather choice and construction details, see what to specify for leather jackets and apparel.
What should a grade rule sheet for an Indian factory include?
It should let a pattern maker grade your range without asking a single question. Send it with the tech pack, in centimetres, with inches shown alongside if your team works in inches.
Base size and the size it was fitted on (for example, men's M, 40 chest).
The full size range and how many pieces of each size you plan to order (the size ratio).
Every point of measure with a clear how-to-measure note: chest 2.5 cm below armhole, back length from high point shoulder, sleeve from shoulder point, and so on.
The increment per POM between each pair of sizes, including any jump between M–L and XL–2XL if yours is not even.
Tolerances for each POM. Many brands use about ±1 cm on chest, waist and length and about ±0.5 cm on smaller points such as collar and cuff.
The size label for each market (for example 40 / 50 / 40R on the same jacket if you sell in the UK, EU and US).
Which sizes go into the size set, and who signs it off.
How many samples do you need before bulk?
Plan for at least three stages: a base-size proto, a fit sample with your corrections, and a size set or pre-production sample in the bulk leather. Skipping the size set is the most common reason extended sizes fit badly.
At Sanwas International the first sample can be ready within 72 hours once the specification and leather are confirmed. Bulk runs from about 30 days after sample approval. During AQL inspection, garment measurements are checked against your chart and tolerances, alongside the visual checks.
How Sanwas International works with brands on jacket sizing
Sanwas International is an LWG-certified OEM and private label leather manufacturer based in Jalandhar, Punjab, India, producing footwear, outerwear, furniture leather and hides for brands in India and worldwide. Send your base pattern or a reference jacket, your size chart and your target markets, and our pattern room will grade the range and show it to you in a size set.
MOQs are under 500 units per style, which can be split across sizes, so a new label can test a short size run first. You can read more about our factory and production capacity and private label leather manufacturing, or request a quote for your leather jacket range.
Frequently Asked Questions
Can I send my UK size chart to an Indian factory and get EU and US sizes graded from it?
Yes. Send one master chart in centimetres with your base size and increments, and ask the factory to show the EU and US label for each size beside it. Approve the conversion before cutting, because brands map letter and numeric sizes differently.
How many sizes should a new leather jacket line start with?
Many new labels start with four or five core sizes, such as S to XL, and add extended sizes once they know their sell-through. Starting short keeps the order within a low MOQ and limits the cost of size-set samples.
Is the FOB price the same for every size of leather jacket from India?
Not always. Bigger sizes use more leather, so some factories quote one FOB price for a standard size run and a surcharge for extended sizes. FOB covers costs up to loading at the Indian port; freight, insurance and import duty in your country are on top, so ask for the price per size in writing.
What tolerance should I allow on leather jacket measurements?
Many brands allow about ±1 cm on chest, waist and body length and about ±0.5 cm on smaller points such as collar height and cuff width. Write the tolerance for each point of measure in your grade rule sheet so the AQL inspection can check against it.
Can an Indian factory make a 200-piece leather jacket order in five sizes?
Yes, with a low-MOQ manufacturer. Sanwas International's MOQ is under 500 units per style, and the quantity can be split across sizes; tell us the size ratio when you ask for a quote and we will confirm how it can be divided.
Grading a Leather Jacket Range for the UK, EU or US? Request a Quote
Brands, sourcing managers, retailers and importers: share your jacket style, leather type, size range and ratio, target quantity, destination country, preferred Incoterm and target delivery date. Sanwas International supplies brands across India and exports worldwide.
Include these details in your enquiry:
Product category and style (footwear, jacket, upholstery leather, hides or crust)
Leather type, finish and colour
Target quantity per style and colour
Delivery city in India or destination country, plus preferred Incoterm
Target delivery date and whether you need a sample before bulk
Contact Sanwas International
Mob: +91 8728858686
Address: 308 Leather Complex, Kapurthala Road, Jalandhar, Punjab 144002, India
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