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A fancy quilting pattern adds an element of style to this lightweight, synthetically insulated jacket.

You are a renaissance woman and boundaries don't exist in your world. You place equally high expectations on your outwear, and the Mountain Hardwear Women's Thermostatic Insulated Jacket won't disappoint you. This lightweight, warm jacket lets you zoom in Zermatt, sight-see in Sorrento, and work in Washington all winter long without letting cold air get the better of you. And, tipping the scales well under one pound, you can pack 49.4 pounds worth of gear and this jacket in without exceeding the 50-pound baggage limit imposed by most major airlines.
Whether you're skiing or traveling, you want to be warm. While down insulation is the warmest thing out there (besides snuggling with your cuddle-bunny), it isn't perfect. Expensive and susceptible to moisture, down can leave you low and wet when winter turns, well, wintry. As a solution to the down dilemma, the folks at Mountain Hardwear created Thermal.Q Elite synthetic insulation: a combination of several different densities of fibers that interact to create a 3-D grid-like structure that creates the same air-trapping effect as down. Unlike down, however, Thermal.Q Elite resists water and thus retains its warmth-retaining grid structure so you don't get the cold shoulder when you're dashing through a vicious drizzle to your car.
Hand-warmer pockets zip for safe storage, and one of the pockets acts as a storage pouch for the entire jacket. Low-profile elastic cuffs make for easy layering over heavy baselayers and under a a waterproof shell. A new diamond quilting pattern adds a splash of style to this jacket so you aren't an eyesore when you're strolling along the Champs-Elysees on Valentine's Day.

  • 15D ripstop nylon
  • Thermal.Q Elite insulation, 60g
  • Standard fit
  • Easy-layering low-profile elastic cuffs
  • 2 front hand-warmer pockets, zipped
  • Stows in own pocket

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Here's what others have to say...

Winter Days

Winter Days

Keeping cozy on a cold February morning at Park Butte Lookout, WA.


Great jacket, just not the color I want

  • Familiarity:I returned this product before using it
  • Fit:True to size

I have been hunting a bright yellow primaloft jacket. I was hoping this would end the hunt but the color isn't what I am looking for. I have other jackets just like this one and recommend it highly for fit, durability , and the warm lined pockets.

Sorry I didn't see this earlier- the yellow is gone. Might get the Marmot Jena on sale.

What is the center back length of a medium?

Winter Wonderland

Winter Wonderland

I find the Thermostatic jacket to be a great asset during chilly winter days. Here it is keeping me warm during an ascent of Green Mountain in Washington State.


Warmth without Bulk

  • Familiarity:I've used it several times
  • Fit:True to size

Thank you and Brand X for hand-selecting me to review this piece of gear for the benefit of the community.

The main reason to buy insulated jacket is to stay warm so when the mountain forecast predicted a plunge down to 25 degrees I got excited about the opportunity to put the Thermostatic through a real test.

I put it over a heavier weight base layer in the beginning of the hike, thinking I’ll take it off once I warm up. We hiked over moderately steep terrain with light variable wind at the base which became stronger as we got higher. Temperature varied from 37 degrees at the base to 23 degrees on the summit. While moving, the jacket kept me warm, without overheating so that I ended up keeping it on all the way to the top. It also did a good job keeping me warm during our short (5 minutes or so) water/snack breaks. I get cold easily and during this time of the year any stop longer than couple minutes normally gets me dig in my pack for an extra layer. For once I could enjoy my snacks rather than fuss with my gear which was really nice.

Once at the final ridge and summit block, the wind picked up considerably and the cold eventually started sneaking in. I opted to throw a top layer on, a three season down jacket, and that kept me cozy enjoying the views during the whole lunch break.

I also used this jacket as a mid layer during a cold coastal photo shoot. We faced strong biting winds, and were not moving much, good insulation was crucial. I layered Mountain Hardwear Thorsun jacket over the top for wind protection. I was impressed. The only spots that got cold during the two hours on location were my fingers that I had to occasionally expose to operate the camera.

These examples are just two of many uses I see for this jacket. It’s great warmth to weight ratio and packability make it the perfect “just in case” jacket to bring along on all outdoor adventures, and thanks to the stylish feminine cut, it is more than suitable to wear

around the city as well.

It layers nicely and even with heavier layer underneath does not get bulky.

The feature I really like are the hem drawcords. I found them to be very valuable when the wind picks up and I am able to cinch the hem to prevent the coldness from sneaking underneath the jacket. The elastic cuffs do the same trick for the arms by closely enveloping around your wrist not letting cold air travel up the sleeve.

I’m 5’7 and 125 lb - size Small fits me well; however I noticed the cut is little narrower in the shoulder area. Those who have broad shoulder might consider up-sizing for more comfort.


Love this jacket!

  • Familiarity:I've used it several times
  • Fit:True to size

Not only do I like the fit and color, but it is warm and works perfectly as a light insulating layer for spring skiing.


Perfect on and off the mountain

  • Gender:Female
  • Familiarity:I gave it as a gift but have feedback to share
  • Fit:True to size

Bought this for the wife. It has a nice fitted cut and color was not too bright (bought the berry jam). Warmth to weight ratio is excellent.

Only issue is packing it into the pocket. It was not easy. Was a bit worried the zip would break while trying to pull it close.