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Women's Mountain Side™ Heavyweight Fleece


https://www.columbia.com/womens-mountain-side-heavyweight-fleece-1730401.html 1730401
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Style# 1730401
Uses Trail


This may be the softest thing you’ve ever worn. This full-zip, ultra-plush fleece jacket is the perfect accessory for a cabin in the woods.

  • Center Back Length:24.5"
  • Imported
  • Uses: Trail
  • Style# 1730401

  • 100% Polyester
  • Back Country Cloth 100% Tactel® nylon taffeta


Women's Mountain Side™ Heavyweight Fleece is rated 4.8 out of 5 by 179.
Rated 5 out of 5 by from Nice jacket The jacket was nice. Really cozy feeling but I did return it. Because I wanted it to be fuzzy on the inside as well and it wasn’t.
Date published: 2018-09-14
Rated 5 out of 5 by from Cute fleece Nice heavyweight fleece jacket. Cute cut. I am 5'10" and 140 pounds. The medium fit perfect. Sleeves and body are both long enough.
Date published: 2018-09-10
Rated 5 out of 5 by from So soft! Ultra soft and comfortable! Fits perfect and great light weight jacket. Highly recommended.
Date published: 2018-09-05
Rated 4 out of 5 by from Great product, misleading pictures Perfect size and quality but when I ordered the cool grey and dark raspberry color I was expecting maroon and suttle gray because of the pictures but I received gray and dark purple product. Still great product, but be careful when picking the colors!
Date published: 2018-09-02
Rated 5 out of 5 by from So soft and well made I love this jacket and I’m so glad I bought it. I typically wear a medium but I sized up to a large after reading reviews saying it fit well but they couldn’t wear a sweater etc underneath. There is a band at the bottom that can be snug so I would definitely recommend sizing up unless you want this to be form fitting. Pockets are set back a little far like other reviews have said but that doesn’t bother me. The fluffy part of the jacket is the outside and the inside is smooth. Absolutely love it, great buy.
Date published: 2018-09-01
Rated 5 out of 5 by from Very Warm This fleece jacket is super soft and extra thick so it will be very warm this winter. The fit is true to size, and it's a great value.
Date published: 2018-08-30
Rated 4 out of 5 by from Super comfy but the pockets are kinda weird I LOVE this jacket, it is the most cozy jacket I own. BUT I feel like there was a bit of a design flaw with the pockets. They are all the way back ON the side seam of the jacket so it’s very awkward putting your hands in. I think the jacket does run a tad bit small so I would recommend going up one size or maybe even 2 sizes depending on how loose you want your jacket to be. Other than that, the color and style of the jacket is awesome and I love that the inside is not the same material as the outside because it perfectly holds in heat but doesn’t make you sweat up against a thick wool material. I also got this on a killer good sale so it’s by far the best jacket I own for the price I got it; but I would certainly buy it again at full price knowing the quality of it!
Date published: 2018-08-25
Rated 5 out of 5 by from very cute The coat is very cute and comfy. The style fits right at waist and looks sporty
Date published: 2018-08-24
Rated 4 out of 5 by from Very comfortable and cute! I love this jacket! Very warm and adorable! I was slightly disappointed that it is not fuzzy on the inside though.
Date published: 2018-08-18
Rated 5 out of 5 by from Super Warm! I LOVE this jacket!! It’s cute and really warm. Would definitely recommend and can’t wait for some cold weather. The fit is true to size. I’m usually borderline xs/s and went s so I’ll have room to layer. It’s a bigger fit, but doesn’t make me look like I’m wearing a potatoe sack!
Date published: 2018-08-11
Rated 4 out of 5 by from Great quality, warm and cozy Very nice product. The material makes it a little 'staticy' when putting on and off but I really love the colors. It has a little stretch to it as well. Warm and comfortable.
Date published: 2018-07-24
Rated 5 out of 5 by from Ary I love this Jacket, I’m medium and it fits perfect so they run a true size. It’s warm, I was expecting to have fleece on the inside too but is not, nice material and looks very pretty. I got the black one and looks great! I bought it on sale so I love my purchase
Date published: 2018-06-24
Rated 5 out of 5 by from SO COZY I’ve been eyeing these furry coats for awhile. I have a Patagonia one and its just the same. I personally like these better, it insulates the heat better. I do recommend getting a size bigger because it can feel a bit tight. But other than that, I love this sweater!
Date published: 2018-06-21
Rated 5 out of 5 by from My wife is inlove with her jacket and she got me one just like it . I can't wait for it to arrive My is so happy with her jacket and she got me one just like it . I can't wait for it to arrive. Over all good quality and looks great.
Date published: 2018-06-16
Rated 5 out of 5 by from So very comfy! If this cMe in 10 different colors, I’d buy it! So soft!
Date published: 2018-06-14
Rated 5 out of 5 by from Great Jacket I wanted a new Fleece for my trip to Iceland. I really like the style of this jacket and bought it. I am really happy I did. It was a good looking jacket and perfect for cool weather, but not over hot. I really liked the way it looked on and even the color chalk with navy accents.
Date published: 2018-06-06
Rated 4 out of 5 by from Would have loved a softer lining The jacket is comfortable and of a nice heavyweight, but the inside has rough seams unlike most fleece that feel nice on your skin. I would recommend this jacket as long as you plan to wear with long sleeves underneath.
Date published: 2018-06-05
Rated 5 out of 5 by from Great fleece I am usually a size small but I like my jackets a bit bigger so I went with a medium and it's perfect. The material is super soft and warm and feels great against your skin. It looks really great on too. Since buying it, it's been my go-to fleece jacket and probably will continue being for a long time.
Date published: 2018-06-04
Rated 5 out of 5 by from WOMEN'S MOUNTAIN SIDE™ HEAVYWEIGHT FLEECE I love this jacket. Living in Vermont it gets very cold and this jacket is awesome for colder weather. As I mentioned in another review I indicated it runs a little small. This is because last year I purchased a jacket in medium and it was and still is roomy and I had to size up to a large with this. Other than that it's a great jacket and excellet quality.
Date published: 2018-05-29
Rated 5 out of 5 by from Great fit I really like this cozy jacket. The placement of the pockets that other reviewers have complained about is not as bad as they make it out, just my opinion.
Date published: 2018-05-13
Rated 5 out of 5 by from so comfy and awesome I have lots of fleeces, but this is my favorite! soft, nice fit, full zip, pockets are good, might have to buy another!
Date published: 2018-04-20
Rated 5 out of 5 by from Great Great cozy warm jacket
Date published: 2018-02-25
Rated 5 out of 5 by from So soft Great jacket so soft and cozy. Fit true to size.
Date published: 2018-02-24
Rated 5 out of 5 by from Warm & Comfy The fleece is very warm and feels like a teddy bear! The fit is slightly large, but can be layered.
Date published: 2018-02-20
Rated 5 out of 5 by from Cozy and Warm Color and fit just as advertised. Perfect weight and just what I was looking for! Deep pockets can hold a lot.
Date published: 2018-02-18
Rated 5 out of 5 by from Amazing jacket This is my favorite jacket I have ever owned! It is warm, but not heavy. I get compliments whenever I wear it. I should have bought a couple of them.
Date published: 2018-02-17
Rated 5 out of 5 by from Extremely warm and soft Love this jacket, it's a must have for chilly days. Wouldn't stand a chance against rain but for cold/windy days, it's perfect!
Date published: 2018-02-16
Rated 5 out of 5 by from Comfortable Love it! Perfect fit.
Date published: 2018-02-15
Rated 5 out of 5 by from Great Fleece Jacket I have been looking for a good quality fleece jacket and I found one. Even though it said Heavyweight, it is not heavy but it is thicker then the usual fleece jacket with good quality. I have worn this jacket to where the temperature is in the 30's and still comfortable! Great product, Kudos to Columbia Sportwear!!
Date published: 2018-02-12
Rated 5 out of 5 by from Heavyweight Fleece Review BEST PURCHASE I’VE EVER MADE. Great jacket, warm, but light. I take this jacket with me everywhere. Good material. I’m sure to make my family a Columbia wearing family. Truly worth the buy!
Date published: 2018-02-05
Rated 5 out of 5 by from Warm Just wore it this weekend and not only is it warm, it's attractive. Some speak of how the pocket entry is way back and this is true. But they are deep & swallowed my large phone without a bulge. Definitely didn't have to worry about it falling out. I love it. Brought 2, keeping both.
Date published: 2018-01-30
Rated 5 out of 5 by from Jackey Warm jacket. Love the color combo!
Date published: 2018-01-29
Rated 4 out of 5 by from Great price My daughter had been wanting one of these jackets. They sell for much more in the store so we were happy to find such a good price.
Date published: 2018-01-28
Rated 5 out of 5 by from Amazing product This product truly lives up to its standards and Columbia is a great company!!
Date published: 2018-01-27
Rated 5 out of 5 by from Women fleece I’ve purchased three of these jackets. For my daughter, sister and myself . So far I’m very pleased with the colors and quality of the fleece. They’re warm and cozy. Fits comfortably I can wear it over my hoodie as well.
Date published: 2018-01-27
Rated 4 out of 5 by from Cute and comfortable This fleece is very cute, just slightly small— a fitted appearance.
Date published: 2018-01-26
Rated 5 out of 5 by from Love it! Love this jacket...it's warm, comfy, and stylish!
Date published: 2018-01-25
Rated 5 out of 5 by from Excellent jacket Very happy with my new jacket, very soft and comfortable. Its size is perfect, the pockets have a good size and I love that it has an internal pocket. I haven't needed any additional clothes for the cold.
Date published: 2018-01-25
Rated 5 out of 5 by from Warm jacket for a great price! I love this jacket. It is very warm and cozy; just perfect!
Date published: 2018-01-25
Rated 4 out of 5 by from Very warm This is a NICE, WARM jacket. “Cuffs” around wrist are a little small. Not as roomy there as I’d like (and I have very small wrists). I got size small. I’m normally a size 0/ XS. The Small fits me perfectly so I would rate this as running small. Overall a stylish, warm jacket.
Date published: 2018-01-25
Rated 5 out of 5 by from WOMEN'S MOUNTAIN SIDE™ HEAVYWEIGHT FLEECE I saw this jacket last Fall and fell in love with it but decided I didn't need another jacket. When it went half-price it was a done deal! The jacket isn't what I'd consider heavyweight and I was skeptical whether it would be warm when the temps were in the 30s. It arrived during a frigid stretch of weather when the highs were low 20s and with a long-sleeved t-shirt and fleecy pullover it was perfect! Couldn't believe how warm I was. I normally wear small and sometimes extra small and ordered small based on the sizing chart and the fit was good. The pockets are in the side seam and somewhat awkward. I'm also 5' and the hem was at my lower hips. The quality and workmanship is good and the hems are nicely finished. It isn't lined like a typical jacket - the fleece is bonded to a slightly stretchy fabric - so there are raw edges inside. Cleaning instructions are machine wash, tumble dry (no dry clean, no fabric softener, no iron) so care instructions are pretty easy. This jacket is a keeper!
Date published: 2018-01-24
Rated 5 out of 5 by from Love love love it Great jacket, comfortable and nice looking. Price was excellent.
Date published: 2018-01-24
Rated 2 out of 5 by from disappointed I was really excited and looking forward to arrival of this fleece. The title of this item stated heavyweight, but the actual product is thin. It's not as warm as I had expected. I would return it, but the cost of shipping is ridiculous, which is why I'm keeping it. Second purchase I've made from Columbia, and both were disappointing. Not sure if I'd buy from here again.
Date published: 2018-01-24
Rated 5 out of 5 by from Excellent choice I love my Columbia Mountain Crest jacket. Warm enough for the winters in Kentucky. I also ordered my husband one I liked it so much.
Date published: 2018-01-24
Rated 5 out of 5 by from Buy it I get cold very easily and this fleece has filled a major hole in my wardrobe. It is warm and cozy on its own, but also perfect for layering if you size down a bit. I am 5'8 and 140lbs and usually wear a medium, but based on other reviews, I ordered the small. This has turned out perfectly for me. I can wear a sweater under the fleece and use it as a jacket. Or, in colder weather (10s-30sF), I can fit it under my puffy down parka. (Other people who don't chill so easily could comfortably wear this in much colder weather, I suspect.) The fleece is very lightweight and easy to pack away on hikes, if necessary. It is also possible to stash keys, phone, wallet, etc. inside the jacket in the de facto pockets created by the actual pockets intended for warming your hands on the outside of the jacket. (In other words, lining doesn't cover up the inside structure of these pockets inside the jacket.) After this purchase, I have actually been warmer than my husband on a number of occasions, which has never happened before. I bought the fleece on deep discount, but it is absolutely worth the full price.
Date published: 2018-01-24
Rated 5 out of 5 by from Sherpa jacket Is very good quality,and when it was 14 degrees outside kept me very warm highly recommend this jacket
Date published: 2018-01-23
Rated 5 out of 5 by from Love I love this jacket! It is very warm and I love that it can be worn alone or as a jacket. It looks great with boots or tennis shoes. I would order another one if my size was in stock.
Date published: 2018-01-23
Rated 5 out of 5 by from comfy jacket really like this jacket, nice design, good fit..very comfy and warm
Date published: 2018-01-22
Rated 5 out of 5 by from Great Jacket Jacket is perfect for chilly days. Outside is very soft material. Looks great on.
Date published: 2018-01-22
Rated 5 out of 5 by from Cozy and Warm I love this jacket...Received many compliments. Cozy and Warm enough to wear by itself on 40 degree temps. I normally wear a size 8 in jackets and ordered this in a medium. It fits snuggly and I can't really wear a sweater under it. I may order a large one to have in case I want to wear something heavy under it.
Date published: 2018-01-22
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Size & Fit Guide

Size Chart

Size & Fit Guide
Women's Body Measurement (Inches)
Size XS
Bust 32-33 34-35 36-37.5 39-40.5 42-44.5
Waist 25.5-26.5 27.5-28.5 29.5-30.5 32-33.5 35.5-37.5
Hips 34.5-35.5 36.5-37.5 38.5-40 41.5-43 45-47
Size L
Bust 39-40.5 42-44.5
Waist 32-33.5 35.5-37.5
Hips 41.5-43 45-47
How to Measure
Womens size chart measurement guide
  • 1. Chest/Bust: Measure at the fullest part of the chest, under the armpits and over the shoulder blades, keeping the tape measure firm and level.
  • 2. Waist: Measure around the natural waistline, allowing the tape measure to sit comfortably.
  • 3. Hips: Measure around the fullest part of your hips.
  • 4. Sleeves: Start at the center back of your neck and measure across the shoulder and down to the wrist. Round up to the next even number.
  • 5. Inseam: Measure from the top of the interior leg to the bottom of the ankle.
Women's Fit Guide
Body contouring fit conforms to movement.
womens performance fit top
Body skimming fit with end-use mobility in mind.
womens active fit top
Modern Classic / Regular
Universal, easy fit for comfortable range of motion.
womens modern classic fit top
Most generous fit for a full spectrum of movement.
womens relaxed fit top

How to Measure

Columbia Fit Guide

How to Measure

  • Fold up at dotted line.
  • Place against a wall or other 90 degree surface.

    Place heel against fold/wall on flat level surface.
  • Mark the end of the longest toe with a pen or pencil.
  • Measure both feet and use the larger measurement.
  • Read measurement and compare to size chart.
  • When comparing on the size chart, determine the closest larger measurement and use that number to determine your shoe size for your country’s shoe measurement standard.

Shipping & Returns

Shipping & Returns

Shipping Information

Shipping Method Rate Expected Delivery Time
Ground $6.00 3-7 Business Days
2-Day Air $12.00 2-3 Business Days
Overnight $19.00 1-2 Business Days
Free Standard Shipping

Return Policy

Returns are accepted within 60 days of the purchase date online or in-store. Your apparel must be in original and unworn condition, with tags still attached. Footwear returns must also include the original box.

Still Have Questions

See our Customer Service section for more details. Visit Customer Service

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