The majority of Marmot jackets run true to size, only some run small and a very few runs big.
The jackets that run small, are small & tight mostly in the shoulders, chest, and waist.
But if you size up some jackets that run small like Marmot men’s smokes run jacket then it will get bigger in sleeves than needed.
Still, most of the time the jackets that marmot offers fit perfectly and are just what works best in terms of fitting.
I’ve covered so many brands and their jackets fitting with a very big data set of which jackets run small, big, or are true to size.
Read Also: Do Patagonia Jackets Run Small?
And today we will do the same with Marmot jackets along with a really big table consisting of most of the marmot jackets (men’s/women’s) and their fitting recommendation (get a size up or not).
If you’re a Patagonia or Arc’teryx user then you’ll be pleased to know that Marmot jackets run very close to them in terms of sizing.
So you can go for the same size with Marmot that you go with Patagonia and Arc’teryx.
Why Some Marmot Jackets Run Small?
To be clear, I do not know the exact reason. But, after observing marmot jackets that run small is – that they tend to go slimmer in shoulders and chest.
Another common reason for those jackets is the fitting type. To give you a broad understanding with a short description let me tell you the type of fit marmot offers in their jackets.
Marmot offers 4 fits tops: Athletic, semi, regular, and relaxed. Among these 4, jackets are only available in athletic and regular.
Let’s leave the other two and just discuss the jacket fits as it is what the article is about.
Athletic Fit:
Athletic fit features tailored or shaped shoulders and fitted hem. If you go with this fit then you need to be aware that this ain’t the needed room to add the layers without losing mobility.

In its own nature, it tends to be tighter in the whole body to give you a more slim and shaped fit.
As the name implies, it is recommended that only the person who has an athletic body can consider this fit. Any other person may find it a taut.
Regular Fit
The marmot jackets with this fit are less shaped or tailored and are much roomier than the athletic fit.

This is what I would recommend to most people who want to buy a very comfortable and mobile jacket that does not resist the body’s movement even when adding layers like a thick fleece, heavy sweaters, sweatshirt, etc.
But keep in mind that not every marmot jacket with the relaxed fit is true to size because as you will see in the table mentioned in this post that still there are jackets like Minimalist Component 3-in-1 which runs smaller than what the size chart says and thus it is recommended to go a size up.
This is just an example there are more jackets in both men’s/women’s sections.
However, a very few regular fits also run big like Fordham, Mammoth Parka, etc where some of these are intended to run big which is good however, a very few are good with going a size down, even if you don’t it is not a problem because then the jacket can bear multiple layers both thin and thick.
Read Also: How Do North Face Jackets Fit?
Which Marmot Jackets Run Small?
Let’s directly jump into the table to see which marmot jackets run small, big, or are true to size.
The table is created based on the other reviews and my intuition which makes it more accurate and can suggest to you whether you need to size up, down, or not at all needed.
Also, you need to know that how well a jacket fit also depends upon individual body types and frames, thus it is good that you check all the measurements in the size chart provided at the end of this article.
Men’s Jackets
Marmot Men’s Jackets | Center Back Length (In Inches) | Do They Run Small? | Style Number |
Minimalist jacket | 28 | True to Size | 31230 |
Minimalist Component 3-in-1 jacket | 30.5 | Runs small, so always get a size up from the marmot size chart | 31530 |
Precip Eco jacket | 29 | For a single layer, go with your usual size, however, size up for more than one layer. | 41500 |
Alsek jacket | 27 | True to size | 11370 |
Rocklin ½ Zip jacket | 28 | True to size | 10150 |
Alsek hoody | 27 | True to size | 11360 |
Drop Line 1/2-Zip Fleece Jacket | 28 | True to size | 71100 |
Highlander down jacket | 27 | Fit is tight around the chest which might be a question mark for an athletic or muscular fit. Go for a size up if you have a large waist. | 79410 |
Hype down jacket | 27 | True to size | 11330 |
Guides down hoody | 28.5 | True to size | 73060 |
Aros fleece jacket | Unknown | True to size | 33340 |
Mammoth parka | 32.5 | Runs big so get a size down if you want a perfect fit, otherwise, it is fine to go with your usual size. | 91490 |
Knife Edge jacket | 29.5 | True to size | 31610 |
Fordham down insulated jacket | 27 | Runs a bit big in sleeves, shoulders, and body length but the pockets are not that wide. I would not recommend to size down as it is there to provide roominess. | 73870 |
Gravity jacket | 28 | The jacket is taut so get a size up for good mobility. | 80190 |
Smokes Run jacket | Unknown | Awkward fitting means it runs small in L but in XL the sleeves ran too long and gave a very boxy fit | 10380 |
Rocklin Full Zip jacket | 28.25 | Ture to size, but a bit long which I don’t consider any big. | 10130 |
Bleeker Component 3-in-1 jacket | Shell: 31, Liner: 27 | Chest and shoulders run tight and sleeves are a little long. This is applicable if you’re around 5’6″, 210 lbs with around 44 chest or above. | 14080 |
KT Component 3-in-1 jacket | 31 | Runs a bit big which is ok as it will protect you from the snow and extra room for layering. For multiple layers get even size up. | 84200 |
Hovden jacket | 31 | True to size | 11090 |
Hype down hoody | 27 | Runs too big | 10870 |
Highlander down hoody | 27 | True to size but one with wide hips or a big stomach, will snug around that area. | 79400 |
Oslo Jacket | 33.5 | Runs big | 74670 |
Burdell jacket | 28 | True to size | 81700 |
Women’s Jacket
Women’s Marmot Jackets | Center Back Length | How’s the fitting? | Style Number |
Montreaux coat | 39 | It fits perfectly, though it hit the knees which might be a choice for you, in reality, this long length helps us to protect ourselves from cold car seats. | 78090 |
Alsek jacket | 26 | True to size | 13090 |
Minimalist jacket | 27 | Get a size up to what the sizing chart says to not feel snug. | 36120 |
Montreal coat | 33 | It’s not an excellent fit! chest is tight, shoulders are narrow, and arms are too big. So what I’d say is, it runs small and big both at the same time. | 78570 |
PreCip Eco jacket | 27.5 | The jacket runs a real small so definitely consider sizing up if you desire to add layers and do not want your chest, waist, hips, and shoulders to feel too tight. | 46700 |
Highlander jacket | 26 | Fits perfectly. Consider sizing to accommodate heavy layers like thick sweaters. | 79370 |
Olden Polartec Power Stretch Pro hoody | 25 | Fits perfectly, those who have short arms may find the sleeves are a bit long | 13260 |
Long Avant Featherless hoody | 34.75 | True to size | 79330 |
Avant Featherless jacket | 24.5 | Fits nicely but runs small through the shoulder so size if you want layers, otherwise it’s fine. | 79340 |
Essential jacket | 33 | True to size | 12480 |
Refuge jacket | 27 | True to size | 12330 |
Huntley jacket | 28 | Those who have a larger chest would feel it tight but if you size up then it would be too big on shoulders. So if you’re similar to this case then you’ve to manage this type of fit. | 36140 |
Chelsea jacket | 38 | The jacket fits perfectly but the hood is really a tiny thing. | 76560 |
Strollbridge jacket | 33.5 | Runs a little small so get a size up, though keep in mind that the sleeves will also get bigger than your arms if you size up. | 78770 |
Guides Down Hoody | 26.5 | True to size | 79300 |
Prospect coat | 44.5 | I’d recommend sizing up because it is slightly too fitted. | 10750 |
Highlander hoody | 26 | True to size | 79360 |
Knife Edge jacket | 27.5 | True to size | 36080 |
Lea jacket | 32 | Fits perfectly | 35780 |
Kristina jacket | 34 | Fits perfectly | 78480 |
Minimalist jacket plus size | 31.5 | True to size and fits perfectly | 36200 |
Solaris jacket | 31 | Fits perfectly | 12470 |
Ithaca jacket | 25.25 | True to size | 78840 |
Wiley jacket | 25 | Fits well but I would recommend sizing up to get more mobility in the shoulder area when adding a layer. But, just with a shirt, no need to size up. | 89300 |
Hype down hoody | 27 | Runs big | 79310 |
Can I Return Unfit Marmot Jackets (Procedure):
Yes, the jackets that were purchased from marmot.com, if not fitting well or not come as expected can be returned to the company via mail within 60 of purchase.
Read Also: Do Levi’s Jackets Run Small?
But, the jackets which are notated with the price ending in .97, are not eligible for return or refund as they are the final sale items.
Furthermore, the jackets bought from the Marmot Flagship Store can not be returned via mail however they can be returned to the location where you’ve purchased them.
The return and refund will depend upon the jacket condition As Marmot states the jacket should be unworn, unwashed, and in a new condition with all the price tags.
You may ask now, instead of returning the small or big jacket can I exchange it for another. The answer is no but after returning the item and successfully getting a refund you can place a new order with a different size.
You will receive the refund to the method of purchase within 2-3 weeks of submitting the return form.
Marmot Jackets Size Chart:
The measurements mentioned in this section correspond to actual body measurements and not the garments which are I think another reason why most of the jackets that you have read in the table are fine even without sizing up or down.
Men’s Size Chart
All the measurements are in inches
Regular
Men | XS | S | M | L | XL | XXL |
Size | 28 | 30 | 32 | 34 | 36 | 38 |
Chest | 33-35 | 36-38 | 39-41 | 42-44 | 45-47 | 48-50 |
Neck | – | 15.75 | 16.5 | 17.25 | 18 | 18.75 |
Sleeve | 31 | 32 | 33 | 34 | 35 | 36 |
Waist | 27-29 | 30-31 | 32-33 | 34-36 | 37-39 | 39-42 |
Hip | 34-35 | 36-37 | 38-39 | 40-42 | 43-45 | 45-48 |
Inseam** | 30 | 31 | 32 | 33 | 34 | 35 |
Big & Tall
Men | 1X | 2X | 3X | 4X |
Chest | 46-48 | 50-52 | 54-56 | 58-60 |
Waist | 42-44 | 44-46 | 48-50 | 52-54 |
Hip | 43-45 | 47-49 | 51-53 | 55-57 |
Sleeve | 36 | 36.5 | 37 | 37.5 |
Sleeves (For Tall People Only) | 36 | 38.5 | 39 | 39.5 |
Women’s Size Chart
Regular
Women | XS | S | M | L | XL | XXL |
Size | 2 | 4-6 | 8-10 | 12-14 | 16 | – |
Chest | 32-33 | 33-35 | 36-38 | 39-41 | 42-43 | 45-47 |
Sleeve | 30.5 | 31 | 31.5 | 32.5 | 33.5 | 34.5 |
Waist | 24.5-25.5 | 26.5-27.5 | 28.5-30.5 | 31.5-34.5 | 34.5-36.5 | 37.5-38.5 |
Hip | 35-36 | 37-38 | 39-41 | 42-45 | 45-47 | 48-49 |
Inseam** | 30-31 | 31-32 | 32-32.5 | 32.5-33 | 33 | 33 |
Plus Size
Women | 1X | 2X | 3X |
Size | 14-16 | 18-20 | 22-24 |
Chest | 42-44 | 46-48 | 51-53 |
Waist | 36-38 | 40-42 | 45-57 |
Hip | 46-47 | 50-51 | 55-56 |
Conclusion
I hope this post will help you a lot in choosing a good marmot jacket in terms of what size fits you well.
Here are some other related articles, I think you might love ’em:
- How Do North Face Jackets Fit? (With List)
- Do Patagonia Jackets Run Small? (With List)
- Do Levi’s Jacket Run Small? (With List)
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Michael is heavily inclined towards traveling to natural places and documenting cultures/people from different parts of the world. He also loves hiking and camping and is spirited toward all outdoor activities. He will share his passion for outdoor life and brands or products we use outside our homes. He has good research skills, and that’s why you can see why his articles are packed with info that is factual and not readily available. He also has the vision to travel the whole world and share it with all readers of Outdoor Favor.