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  • Mammut - Masao Jacket - Men's - Spicy
  • Mammut - Masao Jacket - Men's - Titanium/Ultramarine
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  • Mammut - Masao Jacket - Men's - Spicy
  • Mammut - Masao Jacket - Men's - Titanium/Ultramarine

Mammut Masao Jacket - Men's


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    1 Review


    An all-around shell for the vertical world.

    The lightweight Mammut Men's Masao Jacket is the perfect choice for mixed or ice climbing, backpacking, and classical alpinism trips when the weather is uncertain. DryTech Premium and fully taped seams ensure excellent waterproof and windproof protection that's also highly breathable to keep your hard-working body comfortable. Underarm zippers offer supreme airflow and ventilation, and the two-way adjustable hood slides over helmets with ease. Mammut pre-shaped the sleeves for unimpeded mobility, and added hook-and-loop straps at the cuffs and a drawcord at the hem for a snug fit.

    • Minimalist shell for ice climbing and classic alpinism
    • Waterproof, breathable DryTech shell protects from wind and snow
    • Fully taped seams prevent moisture from seeping through jacket
    • Underarm vents allow for quick ventilation
    • Hand pockets can be accessed while wearing a pack or harness
    • Two-way adjustable hood fits over climbing helmet
    • Item #MAM00VY

    Tech Specs

    [membrane/laminate] Drytech Premium (3-layer), [face fabric] 100% polyester
    Waterproof Rating
    helmet-compatible, adjustable
    2 zippered backpack and climbing-harness compatible, 1 zippered chest, 1 zippered internal with cable outlet
    Claimed Weight
    1lb 0.6oz
    Recommended Use
    backcountry riding, backcountry skiing, backpacking, ice climbing, mountaineering, ski mountaineering
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Excellent 3L Alpine Shell Jacket

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

    I bought this fairly basic shell jacket to use primarily for resort skiing, and I’m very impressed with Mammut’s construction and attention to detail (as usual). These guys really know how to make very functional outdoor apparel for tall, lanky guys like me. The jacket is a fairly burly medium weight 3L shell that’s softer and less stiff than standard Gore-Tex, with just a bit of stretch to it. I haven’t had a chance to test its waterproofing yet, but I can tell it’s impressively breathable. My XL weighs 20 oz. The fit is just about right for my 6’ 5”, 220 lb. frame; it’s the right length in the body and sleeves with enough room for layering underneath. I can easily fit a warm puffy underneath, but it doesn’t look baggy through the body with thinner layers. The detailing is simply perfect, and it’s one smooth-looking jacket in Titanium with blue zippers. All pockets are well-placed. It’s got two generous handwarmer pockets, one smaller upper chest pocket, and two internal mesh pockets. The Velcro-adjustable cuffs are really easy to adjust with gloves or mittens on. Overall, you really get a lot of jacket for $300 here (I paid less than half that, though). This would work really well for the wet snow conditions you find in the Sierras or Cascades. Highly recommended for cold weather alpine adventures, backcountry skiing, or resort skiing. Things I would change: make the upper chest pocket bigger and add a removable powder skirt. Con: the main zipper can be a bit balky.

    Unanswered Question

    Cleaning / washing?

    I assume you need to cold wash this jacket then let it air dry. Any other tips or tricks on extending the life time of the product?

    I don't know if it makes a difference but I have last years model:
    Serial-# 0423115