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Men's Principia™ Softshell Jacket




Shed water and snow with this lightweight softshell jacket. For cool weather sports where some weather protection is needed.
$114.90 $165.00
Style# 1455111
product.components.activity Backpacking / Hiking


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Features & Specs

  • Weight: - 1 lb. 2 oz. / 515 g. -
  • Fit: - Fits Slightly Small -
  • Good For: - Backpacking / Hiking -


Shed water and snow with this lightweight softshell jacket. For cool weather sports where some weather protection is needed.



  • Body Fabric: Motivity Soft Shell™
  • Body Fabric Content: 100% polyester


Center Back Length: 28" / 71 cm
  • Apparel Fit: Standard
  • Weight: 1 lb. 2 oz. / 515 g.


  • Wind resistant, breathable softshell fabric
  • Attached close fitting, adjustable hood
  • Zippered hand and chest pockets
  • One-handed hem drawcord seals in warmth
  • Adjustable cuffs
  • Micro-Chamois™-lined chin guard eliminates zipper chafe


Men's Principia™ Softshell Jacket 4.6 5 18 18
Great jacket for just about anything. This is the second Principia jacket I bought in the past two years. I live in Pennsylvania where we get all types of weather and this jacket is great for the country or city especially in the "in between" seasons where my Ghost Whisperer is just a little too much and the Onata is too light - Yeah I'm addicted to Mountain Hardwear gear. ha! I have one for work, and one for the outdoors - day hikes, camping, fishing etc... Great fit, great functionality, very flexible, and stylish. I wear an XXL am 6'2", 235lbs, perfect fit ,- if it helps 48L jacket, 18" neck, 36-37 sleeve; highly recommended! March 20, 2014
The Do Everything Jacket I bought this jacket for skiing on warm days and backpacking. What I found is this jacket not only skied really well but it was so versatile that I could wear it right from the mountain to the office. I'm very impressed with it's fit and feel and I highly recommend this jacket for anyone looking for an alternative to a shell jacket. March 3, 2014
One of the Best Jackets Found this product on sale, and it claimed to be wind and water proof. It can support both of those claims. The jacket is used in Oklahoma, which is very windy, and it works very well. It is lightweight, but still gets the job done, just like it claims. February 7, 2014
Perfect Mid-layer! This is the most perfect mid-layer/softshell out there! I tried the Thermostatic, but I wasn't impressed with the sizing (ran big and looked "frumpy"), nor the integrity of the outer material. The principia has the characteristic slim-fit, which I've come to love from MH, and I completely trust it's outer material, very tough and water-resistant. The Principia can be worn as a top-layer in sub-32 degree weather if you have good layering underneath, or can be worn as a true mid-layer under heavier jackets in super-low temps at high altitudes. I'm 5'7" 145lbs, and the Small fits perfect. The Principia is comfortable, stylish, functional, and warm - everything you need in a great mid-layer. November 22, 2013
Great purchase for a light, suprisingly warm jacket. What I thought would be more of a "shell-type" jacket is actually fairly warm and cozy with the fleece-lined interior. It's pretty well constructed, fits well, and feels good on. Quality material too. November 7, 2013
Nice Jacket As all other reviews said it is not as thick as one would think by looking at the pic online. I still love the jacket. It is very nice and looks great. I don't wear extremely heavy jackets in winter even though I live in North Dakota and it gets really cold here. I will probably buy a cheap fleece that matches to put under it when it gets really cold. November 5, 2013
Great Jacket! This is a great jacket if you plan on layering, it seems to do really good to break to cold wind and the large hood fits perfect over my helmet. October 28, 2013
Perfect all around jacket Good technical jacket with a hood. It is increasingly hard to find jackets with built in hoods these days. Good fit. Not too tight or too loose. It is a little large on me but I have long arms and broad shoulders so I end up with stuff too big to fit my frame. Pack-able and full of functions. It is going to be my new all around jacket! June 24, 2013
Perfect Jacket! I love this Jacket. One recommendation: Make the pockets higher. If I wanted to wear a pack, the pockets would be under the waist belt. April 29, 2013
principia Great jacket overall! Fit true to size, just a little snug under the armpits. Wear over thin mid-layer. Thicker and warmer than I expected. Would like to see the velcro cuffs be smaller and trimmer. For the price a GREAT Soft Shell!! March 7, 2013
Perfect! A co-worker of mine recommended this jacket to me. He called it the single best article of clothing he'd ever purchased. I couldn't agree more. It's light, but has held up the last several weeks to some chilly, windy, rainy mornings. I'm in Houston, and it's the perfect jacket for fall or spring. Excellent. March 3, 2013
Great mid-layer I bought this jacket a little over a month ago, and have had no issues. I'm 6'1" 180, and a Large was a perfect fit, even with a couple lighter layers underneath. Climbing in this jacket is a breeze. My harness fit great over it, and could still move my arms freely. Hood just barely fit over a helmet, and I couldn't zip up all the way. We had temps in the 40's and wind gusts 15-20mph, and it cut the wind pretty well. I wouldn't have this by itslef in any winds much higher, though. Used it on a crack climb with lots of hand jams; the cuffs and arms held up with no scuffs or tears. Bottom line: I recommend this jacket as a great mid-layer on cold trips, and it looks great around town, too. January 20, 2013
Nice Jacket. This is a nice jacket, I was expecting it to be a bit thicker and warmer but works great as a mid layer especially under a rain jacket. My friends like it and one other has already bought one after trying mine on. January 19, 2013
Decent but not great. I ordered this coat online and ended up sending it back. A very lightweight soft-shell. Fits a bit small. I'm a size a L, 6' and the jacket was too short and would be unfuctional. Sleeves are a good length. Was looking for a shoft shell with a hood that would be a good outter layer and this coat was too light for me. Not worth it for the price for such a lightweight coat. January 8, 2013
The "Can Hack-It Jacket" I've only had this jacket for a short while and have found it to be very versatile. I've used if for keeping warm in a cold conference room and for use outside on a cold wintry day. And it looks sharp too! December 10, 2012
Good, but not quite perfect... I have been wanting a softshell for quite a while, and I recently had the fortune of receiving a friends and family discount, so I could not pass up the chance to do some power shopping for some new gear. I originally wanted the The Mercurial, but they were out of stock so I went with The Principia. Build - It seems like it is a well built jacket with good attention to detail and had very minimal loose threads out of the bag. Time will tell how it stands up, but so far so good. My only gripe on the build, is the seams on the arms have been a bit scratchy when wearing short sleeves under them. Non-issue with long sleeves. Fit - I am 6'-1", 175 lbs and a bit long in the torso. I ordered the M. The width is PERFECT to my skinny build, but the sleeve and overall lengths are a bit short for my taste. If I am standing straight everything is fine, but any strange movement such as a long reach while climbing tends to pull the jacket one way or another leading to exposure. A small helmet fits tightly under the hood, but then the jacket rides high at all times. Performance - I haven't had it out in a hard rain or snow yet, but it sheds light sprinkles easily and cuts wind well. I am comfortable down to dry 25-30 degrees with just a medium base layer and some gloves as long as I remain active. The hood cinches work reasonably well, but they tend to pull loose after a few minutes if I am moving my head around much. Overall - I would definitely recommend this jacket, but could live with an extra 1"-2" of length on torso and sleeves to cover builds like mine (which I would assume are fairly common to users of this kind of gear) November 30, 2012
Solid Jacket I sought this jacket to fill a range of needs: wind protection for work, biking, wearing out on the town, skiing, etc. and it has filled every role beautifully. It's warmer than I expected for a softshell, offers good wind protection, sheds water, and fits well. Important for me, it doesn't catch nasty weed seeds when I'm working in grasslands. It's pretty lightweight too, and the hood is great. Basically I'm happy! The large fits my 6'4'', 180 lb body well, with a little room to spare. November 27, 2012
jacket fit i'm 5'9, 160. height of jacket is good, length of sleeves is good, along with the overall feel. however, the shoulders need some more working room. I'm a broad shouldered guy and it just feels like they are too tight. besides that its a pretty comfortable jacket. I could go with a large but then the sleeves and jacket height would be too big. October 18, 2012
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