Free 2-Day Shipping on Orders Over $50

Detail Images

  • Marmot - 3/4 Front
  • Marmot - Back
  • Marmot - 3/4 Front
  • Marmot - 3/4 Front
  • Marmot - 3/4 Front
  • Marmot - 3/4 Front
  • Marmot - Back
  • Marmot - Back
  • Marmot - 3/4 Front
  • Marmot - Back
  • Marmot - Open
  • Marmot - Back
  • Marmot - 3/4 Front
Gearhead Pick
  • Marmot - Reactor Fleece Jacket - Men's - Denim
  • Marmot - Reactor Fleece Jacket - Men's - Dark Crimson
  • Marmot - Reactor Fleece Jacket - Men's - Cinder
  • Marmot - Reactor Fleece Jacket - Men's - Crocodile
  • Marmot - Reactor Fleece Jacket - Men's - Black
  • Marmot - Reactor Fleece Jacket - Men's - Alpine Green
  • Marmot - Reactor Fleece Jacket - Men's - Surf
  • Marmot - 3/4 Front -
  • Marmot - Back -
  • Marmot - 3/4 Front -
  • Marmot - 3/4 Front -
  • Marmot - 3/4 Front -
  • Marmot - 3/4 Front -
  • Marmot - Back -
  • Marmot - Back -
  • Marmot - 3/4 Front -
  • Marmot - Back -
  • Marmot - Open -
  • Marmot - Back -
  • Marmot - 3/4 Front -

Current Color

  • Marmot - Reactor Fleece Jacket - Men's - Denim
  • Marmot - Reactor Fleece Jacket - Men's - Dark Crimson
  • Marmot - Reactor Fleece Jacket - Men's - Cinder
  • Marmot - Reactor Fleece Jacket - Men's - Crocodile
  • Marmot - Reactor Fleece Jacket - Men's - Black
  • Marmot - Reactor Fleece Jacket - Men's - Alpine Green
  • Marmot - Reactor Fleece Jacket - Men's - Surf

Marmot Reactor Fleece Jacket - Men's

sale from $52.22 $94.9545% Off

Free 2-Day shipping on orders over $50. Learn More

Select a Size:

Select options
  • Select options
    • S
    • M
    • L
    • XL
    • XXL

    Select a Color:

    Select options
  • Select options
    • Denim
    • Dark Crimson
    • Cinder
    • Crocodile
    • Black
    • Alpine GreenPast season color
    • Surf
    4.5528

    28 Reviews

    Details

    React to the cold with warmth.

    Be proactive about cold with the Marmot Reactor Jacket. This full-zip fleece features flat seamlock construction for comfort so you can wear it day in and day out. Zippered hand-warmer pockets and a bonded zippered sleeve pocket provide ample storage for your cell phone, wallet, or hands. A hemline drawcord and wind flap behind the front zipper adds protection from fall gusts when you’re raking leaves.
    • Soft and smooth fleece keeps warm on ski or camping trips
    • Polartec Classic 100 fleece sits on the lighter side of fleeces
    • Hem drawcord maintains a secure fit under backpack straps
    • Item #MAR1734

    Tech Specs

    Material
    Polartec Classic 100
    Fleece Weight
    100
    Fit
    regular
    Length
    hip
    Center Back Length
    70 cm
    Hood
    no
    Pockets
    2 zipperd hand, 1 zippered sleeve
    Claimed Weight
    12 oz
    Recommended Use
    casual, skiing, snowboarding, hiking
    Manufacturer Warranty
    lifetime

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Decent fleece layer

    • Familiarity: I've used it several times
    • Fit: True to size
    • Size Bought: Small
    • Height: 5'9"
    • Weight: 125lbs

    The jacket feels really nice and lightweight. If you looking for a nice 100g fleece layer then this is the best bang for your buck. This jacket has a regular cut so it doesn't fit to my body as well as my other athletic pieces. However, it leaves room for layers underneath. Still, it is quite loose in the stomach area that I only reach for it when I want something loose for hanging out or lounging around.

    Great Light Weight Fleece

    • Familiarity: I've used it several times
    • Fit: True to size
    • Size Bought: large
    • Height: 6'2"
    • Weight: 185lbs

    This light weight fleece is unassuming, but stands up to the cold when you need it the most. It's cut slim so it fits under a light jacket for that extra layer on a cold day. It doesn't do much in the wind, but if you wear it under a wind breaker you're in business. I like the full length zipper so I can easily adjust and regulate if I get too warm.
    I recommend this jacket. It has kept me warm on some very cold early spring days in New York.

    Swanky Marmot

    • Familiarity: I've put it through the wringer
    • Fit: Runs large
    • Height: 6'1"
    • Weight: 150lbs

    This fleece is terrific! It's thin yet cozy which makes it awesome for layering. I generally wear a large but went with the medium and it fits me well. This is a perfect fleece jacket for someone like me who enjoys the fitted look.

    Does as claimed. Cilantro is green lol

    • Familiarity: I've used it several times
    • Fit: Runs large
    • Size Bought: Medium
    • Height: 5'10"
    • Weight: 180lbs

    Very good quality. It's slightly larger than my other medium sized clothing. The only problem I have is cold wind blowing. If I wear I anything else with it, I heat up quite quickly, even below 30 degree weather. It's breathable, just as they claim. It dries very fast as well. Poured a little bit of water on it, and it disappeared; it was completely dry in seconds. Wore it running and you couldn't even tell I was sweating. The only problem I have is that the Cilantro looks yellow on all of my devices. If I had known it was a light green, I would have gotten a different color. I expected green, but was hoping for the off yellow, as it is very hard to find yellow clothing.

    Awesome fleece!

      This marmot fleece is supersoft and really sharp looking. I originally bought it for strictly an underlayer, But was surprised with how stylish it is. I will definitely be wearing this throughout fall, and on hikes with one layer under, also the Alpine green looks better in person than it does on line. New favorite fleece.

      Warm on a still day

      • Familiarity: I've put it through the wringer
      • Fit: True to size
      • Size Bought: Medium
      • Height: 5'10"
      • Weight: 170lbs

      This fleece has served me well. It is a little baggier through the body than I like but maybe I wear my clothes too tight. The fleece is warm when layered under a windbreaker, but on its own the lightest breath of wind cuts right through it.

      Very satisfied so far

      • Familiarity: I've used it once or twice and have initial impressions
      • Fit: True to size
      • Size Bought: Medium
      • Height: 5'11"
      • Weight: 147lbs

      I've only had this jacket a short time, but I'm really pleased with how it performed. I wore it on a chilly morning hike in the White Mountains in early March, and it plus a base layer were perfect for keeping me warm but not sweaty while hiking.

      More importantly though, it held up beautifully when our hike went a little off the rails. When the trail got icy we kept climbing higher than we probably should have even though we didn't have any spikes or crampons. That meant a bit of bushwhacking through branches, and several unintentional falls as well as a couple intentional slides. The jacket slid over rock and rough ice and pushed through thick branches and underbrush without any apparent signs of wear at all.

      It's also nice and lightweight, so there's no real downside to taking it along. I think this will be with me even through the summer months when it's warm enough that I won't usually need it. We'll see how it holds up over prolonged use, but I put it through a lot more than I should have this past weekend and it held up wonderfully.

      The truth!!

      • Familiarity: I've put it through the wringer
      • Fit: True to size
      • Size Bought: XL
      • Height: 5'7"
      • Weight: 215lbs

      First, the material is incredibly soft and super warm. The quality is second to none, the finishing touches on the stitching and Zipper quality are great. I used it as a second layer when we had the coldest temperatures in NJ in 20 years at 28 below 0. It is a bit long at the waist line, however I'm 5'7" 215lbs and I did get the XL. Overall OUTSTANDING, and I would buy it again. I'm sold on Marmot products.

      Blue is darker in person

      • Familiarity: I returned this product before using it
      • Fit: True to size
      • Size Bought: Small
      • Height: 5'9"
      • Weight: 140lbs

      Before I share anything about the product, I love blue. All shades of blue. I think this jacket works marvelous for mid 50 temperatures in Utah. Not too cold, nor too hot! Unfortunately upon receiving it, I didn't like the color of the jacket (first time I didn't like a shade of blue). Otherwise everything is great.

      Marmot to the rescue!

      • Familiarity: I've put it through the wringer
      • Fit: Runs large
      • Size Bought: Medium
      • Height: 6'0"
      • Weight: 168lbs

      I had a problem with this jacket and Marmot replaced it and restored my faith in their product. Thanks Marmot!

      light weight warmth

      • Familiarity: I've put it through the wringer
      • Fit: True to size

      Great light fleece jacket for cool temps..The fleece is very soft and comfy. I use it as a outer layer and when temps demands you can layer it over base layer and layer over it with precip jacket for temps down to around twenty degrees for a light weight none bulky layering system...

      Marmot love

      • Familiarity: I've used it several times
      • Fit: Runs large

      This "jacket" does the job. I appreciate its lightweight and powerful warmth. I use it for everything I do outdoors and it never disappoints. I'm 6' 1" 180lbs with an athletic build and I had to send back my first buy of a Medium in exchange for a Large and it fits ok. I feel it runs a little long but the added length can be utilized. The Medium fit great except it was tight around my chest. Other then the added length of the Large it fits great otherwise. Love me some Marmot!

      Typical Marmot Quality

      • Familiarity: I've used it once or twice and have initial impressions
      • Fit: True to size

      I have a lot of Marmot stuff. Bought the Reactor fleece as an addition to my layering system. It is classic fleece, meaning it is warm but not windproof. I didn't expect it to be. I am 5'9", 34 waist and wear a medium. This fits me true to size.



      The jacket is sharp and great as a mid-layer or stand alone for warm ski days or around town. Highly recommended.

      Nice fleece.

      • Familiarity: I've used it several times

      Just what you want out ofa fleece jacket....warm, comfortable and just right as a baselyer under a shell. True to size, like all the oher Marmot stuff I own. You can't go wrong with this piece.

      Hard to fit "athletic" body

      • Familiarity: I've used it once or twice and have initial impressions

      This jacket is soft, comfortable and the Polartec membrane makes it possible to wear it as an outer layer on relatively calm days. However, being a tall and somewhat slim guy (6" 2', 177lb), Marmots just does'nt fit well. The medium had too short arms but nice width, and the large had ok arms but too much width. Kinda felt like wearing a tent... I sent both of them back in exchange for a Norr�na Falketind, L( which btw is awesome!).

      I can add that the reason I wanted a slim-fit fleece was because I plan on using it as a mid-layer under a Patagonia Triolet shell, and therefore wanted as much mobility, e.g. as little extra garment as possible.

      Marmot makes great quality

      • Familiarity: I've used it once or twice and have initial impressions

      I have owned three Marmot fleece jackets, and I just purched two more (slate gray and fatigue). While the Marmot quality is superb, I find that the medium size runs a bit small. In addition, the sleeves, especially from the elbow to the wrist, are very tight. Difficult even when wearing a lightweight long sleeve shirt under. There's no way I could wear a sweater under this fleece. Backcountry.com is great!

      Light Fleece

      • Familiarity: I've used it several times

      Exactly as the title says, it is a lighter weight fleece perfect for cool days/nights and a great layer option because it is light!



      I wear this when the temps are in the 50s and use it as a layer in the winter underneath my down jacket. I love that is has hand pockets, never know when you need to stash something or keep your hands warm on a breezy night.



      I am 5'11", 230#s and order an XL. Fits great and I can still slip it over a long sleeve or base layer.

      Can this fleece zip into a Marmot shell?

      Can this fleece zip into a Marmot shell?

      Best Answer

      This question was answered below, and as stated there: "No, only the Marmot Warmlight fleece and the Cauldron Jacket and Vest are zip in compatible."



      You could easily wear this fleece under any shell though and it will work perfectly fine. There isn't really a need to zip the two layers together.

      Unanswered Question

      Will this Marmot fleece work as an interliner...

      Will this Marmot fleece work as an interliner (match up to zipper size) for my Marmot cost?

      Just purchased this jacket as I was looking...

      Just purchased this jacket as I was looking for a light fleece for foggy, or chilly early morning / evening hikes and am planning to wear my Patagonia Houdini as a light shell (light rain) if needed.

      I am 6' on the nose, and weigh in at 210lbs with a 45" chest. As always smack dab in the middle of everything when it comes to size charts. I ordered the XL as I prefer a slightly looser fit, but had heard Marmot runs a bit big (not so with my Precip jacket I purchased 6 years ago). I know I can exchange, but wanted to know if XL is the right size.

      Thanks

      I have a Marmot Precip jacket, would this...

      I have a Marmot Precip jacket, would this fleece fit under it? Would this be a good combo for skiing?

      Is the Reactor jacket fairly light weight...

      Is the Reactor jacket fairly light weight fleece?

      Best Answer

      Peter,
      Thanks for your question. The Marmot Reactor is built from Polartec Classic 100 weight fleece. There is 100 weight, 200 weight, and 300 weight fleece in the Polartec fleece family. That being said, the Reactor is lightweight, and would work great for three season use. I hope this is helpful for you.