Marmot Men's Isotherm Jacket
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Men's Isotherm Jacket

Marmot Men's Isotherm Jacket is rated 4.9 out of 5 by 8.
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From $93.99   $224.95
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Shipping Information

"In Stock" means this item is ready to ship. Orders placed before 3pm EST using a ship speed of 1 Day, 2 Days, or 3 Days will ship SAME DAY. Orders using 4-6 Day ship speed will ship within one business day.

"Ship Date" means we will special-order the product for you, and this is the date we expect your shipment to leave our warehouse.

"Oversized" means the item is large and can only be shipped using 4-6 Day ship speed. Additional shipping charges may apply.

"Freight" means the item is too large for standard shipping methods, and must be shipped by truck freight for an additional fee. Someone must be present to inspect, sign, and accept delivery, so we will call you to schedule delivery.

If you have any questions, please call 844-833-6921

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Product Description Item No.   10280822

FEATURES of the Marmot Men's Isotherm Jacket

  • 20 denier pertex quantum fabric
  • PolarTec alpha insulation
  • PolarTec power stretch panels
  • Zip hand pockets
  • Zip chest pocket
  • Elastic bound cuffs
  • Interior mesh pocket
  • Zonal mesh lining
  • Elastic drawcord hem
  • Angel-wing movement

- + Product Specifications
Gender: Mens
Features: Adjustable Drawcord Hem, Internal Pockets, Polartec, Insulated, Zipper Garage
Jacket Length: Hip
Best Use: Casual
Fit Type: Regular Fit
Weight: 16.03 oz
Back Length: 27 in.
Exterior Pockets: 3
Internal Pockets: 1
Jacket Fabric: 47% Nylon, 34% Polyester, 19% Elastane
Insulation Details: Polartec Alpha
Fabric Weight: 6.8 oz / yd
Waterproof: Yes
Product Technology: Polartec Power Stretch, Pertex Quantum
Insulation: Down
Polartec Power Stretch

Polartec Power Stretch
Polartec Power Stretch has the ability to retain warmth without restricting movement during physical activities. It utilizes resiliant elastic fibers to ensure performance fit, making it ideal for any kind of aerobic outdoor pursuits. Examples: hiking, skiing, running, biathlon, triathlon, and mountaineering.

Check Out All Power Stretch Products >

Pertex Quantum

Pertex Quantum
Pertex Quantum is lightweight, windproof and abrasion resistant. Its strength-to-weight ratio is optimized to protect your insulation and maximize loft, thus trapping more warm air. This all adds up to you being warm and cozy.

Check Out All Quantum Products >

Rated 5 out of 5 by from Fully featured, warm and very breathable I actually use the older version (Very similar except the Power Stretch Pro part being Softshell) for trail running. Some say it may be overkill but I would say it fits perfectly into cold/ extreme cold weather running (< -10 °C). Shell is windproof and the insulation is warm, the mesh liner makes is very breathable, and the reason I am saying this is that I can physically grab on ice pellets in the insulation part which are in fact my frozen sweat. The softshell part is also optimal in terms of warmth but won't overheat my arms. Last but not least, the pockets are awesome.
Date published: 2016-01-01
Rated 5 out of 5 by from High quality versatile jacket I have the 2015 version of this jacket and absolutely love it. For reference, I also own, and really like, Marmot's Calen and Gravity jackets. I am 73 inches tall and weigh 190lbs. The large is a perfect fit for me as is also the case with all my Marmot jackets. This jacket is extremely comfortable and allows for a full range of quiet, resistance free motion.The shell repels water well and does a good job blocking all but the fiercest winds. I really like the large mesh interior pockets. I just really like wearing this jacket. It weighs next to nothing and packs down into a small package. It can easily take you into the low 40 degrees/high 30's when used in conjunction with an appropriate mid-layer and when strenuous activity is involved...the number goes lower still. Because this jacket is not bulky it will easily fit under your hard shell for colder, extreme wind and/or wet conditions. Great versatility and value.
Date published: 2016-03-29
Rated 5 out of 5 by from Marmot light jacket Wearing this jacket at Zion Canyon National Park as we speak in 29 degree weather. Light weight and very warm. Not bulky! Excellent choice!
Date published: 2015-11-05
Rated 5 out of 5 by from So light and thin, and yet so warm! I was surprised how well this jacket keeps the heat.
Date published: 2016-12-14
Rated 5 out of 5 by from Perfect mid-weight jacket I have found this jacket to be perfect in 30s, 40s, and 50s degree weather. It's lightweight and breathable enough that you can wear it in warmer weather (50s for example) and not get over heated, but also has enough warmth to keep you comfortable in the 30s (in the 20s you need something more significant).
Date published: 2017-01-19
Rated 4 out of 5 by from Comfortable, lightweight Just got this jacket a few days ago but thankfully we still have warm weather so I can't say how it is in the cold. Overall, it's a good fit and extremely light...hopefully warm when I go skiing.
Date published: 2016-10-12
Rated 5 out of 5 by from Perfect My husband loves his jacket. It is both stylish and warm.
Date published: 2016-12-30
Rated 5 out of 5 by from Great Jacket It live up to what it mean to and it fit perfectly
Date published: 2016-12-27
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- + Size Guide

Marmot Men's Jackets

Numeric Size 28 30 32 34 36 38
Chest 33 - 35" 36 - 38" 39 - 41" 42 - 44" 45 - 47" 48 - 50"
Neck -- 15.75" 16.5" 17.25" 18" 18.75"
Waist 27 - 29" 30 - 31" 32 - 33" 34 - 36" 37 - 39" 39 - 42"
Sleeve 31" 32" 33" 34" 35" 36"

CHEST: Measure around the widest part of the chest / bust, holding the measuring tape under your armpit.

WAIST: Measure around the narrowest part of the waist, usually near the belly button.

SLEEVE: With the arm slightly bent, measure from the center back neck bone, over the shoulder and to the wrist bone.

ATHLETIC: Tailored shoulder, Fitted hem.

SEMI-FIT: Relaxed shoulder, Tapered hem.

REGULAR FIT: Relaxed shoulder, Straight hem.

RELAXED FIT: Dropped shoulder, Loose Hem.

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