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  • Marmot - Reactor Fleece Pant - Men's - Black
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  • Marmot - Reactor Fleece Pant - Men's - Black

Marmot Reactor Fleece Pant - Men's

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    4 Reviews


    Embrace the cold.

    Designed to be worn as a cozy layer for the house or the confines of your tent, the Marmot Reactor Pant keeps you roasty-toasty warm. Thanks to the Polartec fleece, you're able to maintain furnace-like fervor, while the elastic waist boasts an internal tie for a personalized fit. Combine the Reactor with a waterproof shell when you find yourself neck-deep in powder in the backcountry, or wear them under your Carhartts on a chilly night around the campfire.

    • Fleece pant designed to be worn as baselayer or standalone
    • Warm polyester offers furnace-like fervor
    • Myriad of pockets keep necessities close
    • Regular fit assures versatility
    • Item #MAR00WL

    Tech Specs

    Polartec Classic Micro (100% polyester)
    2 hand, 1 back zip
    elastic, integrated drawcord
    Claimed Weight
    10 oz
    Recommended Use
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?


    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: True to size
    • Size Bought: medium
    • Height: 5'9"
    • Weight: 150lbs

    Warm, comfy, cozy. Comfortable loose fit for me in size medium (I'm usually a 30" waist and 32" inseam). I've worn them more for around the house tasks. Walked the dog in them a few times and noted that any wind goes right through them, so outdoors they'd need to be worn in relatively benign conditions, or layered under a shell pant. Great camp-wear or for warm layer under something.

    Cozy Warmth for the Backcountry/home

    • Familiarity: I've put it through the wringer
    • Fit: True to size
    • Size Bought: small
    • Height: 5'6"
    • Weight: 140lbs

    After 10 years, I figured it was time to replace my old fleece pants. I searched high and wide and far and near for one that could fill the very big (if now quite thin and pilled) shoes left by my first flants. I couldn't find a comparable women's pant I was happy with, hence going with this men's pant.

    The Marmot Reactor pants have proven themselves well in these past few weeks, from lounging at home to chilly hut trips in the Uintas. The waist band is quite comfortable, if a tiny bit stiffer than ideal for packing. The two side pockets can hold plenty of jelly beans...or just your hands to keep them warm. The zippered pocket on the back is a nice addition, keeping my chapstick safe from the everything-eating-tundra.

    I'm about 5'6", 145#, 29" waist and the men's small fits generously everywhere save the waist itself.

    Great Pant

    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: True to size
    • Size Bought: Medium
    • Height: 5'10"
    • Weight: 190lbs

    Love these pants. Perfect length, waist is right on. Slim (ish) fitting, no extra bulk in the legs.

    Work well on own, though wife recommends against wearing in public for extended period of time. Quick run to store has been approved though!

    Warm, cozy, my new favorites.

    Are these a lightweight fleece?

    Hey Jessica, in regards to your question. This is a lightweight fleece and is meant to be a base layer, or just a casual hangout pant. It rings in at a mere 10 oz!

    Hit me up if you have more questions,