Quick answer: The North Face Korea men’s sizes often use numbers such as 90, 95, 100, 105 and 110, but those numbers are not a universal international conversion. Compare your best-fitting garment with the exact Korean product’s measurements, then allow room for layers and the intended fit.
Independent sizing guide. Product measurements and size availability change by model and season.
How Korean Men’s Sizes Work
On current official Korean pages, a common sequence is 090(S), 095(M), 100(L), 105(XL) and 110(XXL). Some products add 085(XS), 115(XXXL), women-specific options or a different sequence. The label is only a starting point; the actual garment table is the decision tool.
The Reliable Measurement Method
- Choose a similar jacket, fleece or sweatshirt that fits you well.
- Lay it flat without stretching.
- Measure total length, chest width/circumference, shoulder and sleeve using the same method shown on the Korean page.
- Compare with the exact model’s official “size information” table.
- Add room for a midlayer if the item will be worn over fleece or down.
Do not compare your bare-body chest directly with a garment circumference unless the table clearly identifies body measurements. Korean product pages commonly publish actual garment measurements and warn that small production differences can occur.
Fit Changes the Answer
- Regular fit: usually the safest starting point for everyday wear.
- Loose or oversized: may already include significant ease; sizing up again can be excessive.
- Technical shell: test shoulder movement and leave space for the intended layers.
- Fleece midlayer: avoid excess bulk if it must sit under a shell.
- Unisex: check length and shoulder width carefully; the same number can feel different on different bodies.
Before You Buy Internationally
Confirm the complete product code, save the official measurement table and read the return route before paying. Cross-border return shipping can cost more than choosing carefully at the start. If you are between sizes, decide whether mobility, layering or a closer fashion fit matters most.
For the general system, read our complete Korea size guide. Women can use the dedicated women’s guide.
Current Official Example
The official Korean page for the men’s MARI-ON jacket, model NJ3NR57B, currently shows the sequence 085 (XS), 090 (S), 095 (M), 100 (L), 105 (XL) and 110 (XXL). This is useful evidence for that product, but it is not a universal conversion chart for every men’s jacket. Another model may be unisex, intentionally oversized or offered in a shorter size run.
The same official page notes that detailed product measurements are stated in centimeters and may vary slightly according to the measuring method. That is why a labeled “100 (L)” should be treated as a starting point. The flat garment measurements provide the better comparison.
How to Measure a Jacket You Already Own
- Choose a similar jacket that already fits the way you want.
- Zip it, empty the pockets and lay it flat without stretching the fabric.
- Measure pit to pit across the chest, then double it only if the official chart uses circumference.
- Measure shoulder width from seam to seam when the seams are clearly defined.
- Measure sleeve length using the same start and end points described by the seller.
- Measure back length from the base of the collar to the hem.
- Write down the intended layer: T-shirt, fleece or insulated mid-layer.
Measurement definitions matter. Raglan sleeves may be measured from the neck rather than a shoulder seam, and drop-shoulder jackets can appear unusually wide. When the official diagram is available, follow its arrows instead of mixing methods.
Recommended Ease by Use
Ease is the extra room between your body and the garment. A close casual jacket needs less ease than a winter shell worn over fleece. Rather than adding a fixed number for everyone, compare your reference jacket with the product measurements and decide where you need room.
- T-shirt or thin shirt: prioritize the shoulder and chest shape you normally enjoy.
- Fleece underneath: check chest, upper arm and sleeve length while wearing a similar layer.
- Down or insulated jacket: avoid compressing the insulation by buying too tight.
- Rain shell: allow movement at the shoulders and elbows without making the hem or cuffs impractical.
- Oversized fashion fit: compare body length as carefully as width; sizing up can make sleeves and hem much longer.
Common Conversion Mistakes
The most common mistake is converting one Korean number directly into a US or EU letter and stopping there. A second mistake is using a chart from a different category—such as a T-shirt—to buy a padded jacket. A third is relying on height and weight recommendations without considering chest shape, shoulder width, arm length and preferred fit.
If two sizes are close, compare the parts that are hardest to alter. Sleeve and body length may matter more than a little extra waist room. For a technical layer, also test arm raising, reaching forward and bending the elbows. The best size is the one that supports your actual use, not the one whose letter looks familiar.
Example: Choosing Between 100 and 105
A buyer may normally wear a US large and see that one Korean product labels 100 as L. If the buyer’s reference jacket has a similar chest but longer sleeves than the Korean 100, moving to 105 may solve sleeve length while making the body too wide. The correct answer depends on the full table. Compare both sizes across chest, shoulder, sleeve and total length, then test the planned fleece layer. If neither set of proportions works, a different model is better than forcing a country conversion.
For secondhand items, ask the seller to measure the actual garment because washing, wear and measuring technique may create differences from the original chart. Request a photo of the tape placement if the purchase is expensive or non-returnable.
Record your reference jacket measurements in centimeters and keep them for future purchases. Once you know the chest, shoulder, sleeve and length that work for each type of layer, comparing new Korean product pages becomes faster and more consistent.
Bottom Line
Use 85, 90, 95, 100, 105 and 110 as product-specific size labels, not universal body measurements. The official MARI-ON example shows one current conversion sequence, while the garment table tells you whether that exact jacket will fit. Measure a similar jacket, copy the official measuring method and account for layers. This approach is slower than a one-line country conversion, but it greatly reduces costly cross-border sizing mistakes.
Frequently Asked Questions
Is Korean 100 always a US men’s large?
No. It may be displayed as L on a specific product, but fit and measurements still vary.
Should I size up in The North Face Korea?
Not automatically. Compare the exact garment measurements and intended fit first.
What measurement matters most for jackets?
Chest, shoulder, sleeve and total length together; no single number describes the fit.
How much room should a shell have?
Enough for your intended midlayer and full arm movement without excessive fabric.
Are 95, 100 and 105 body measurements?
Do not assume they are the finished chest circumference. Treat them as labeled sizes and use the official detailed measurements for the exact product.
What if the product is labeled unisex?
Use the unisex product’s own measurement chart. Do not apply a men’s-only conversion simply because the number looks familiar.