KT Component 3-in-1 Jacket - Men's
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Stay prepared for anything with the KT Component 3-in-1 Jacket—adaptable, waterproof, and insulated
What Our Gearhead® Experts Are Saying:
"I love how this jacket handles everything the mountains throw at me. The GORE-TEX® shell keeps me dry in heavy storms, and the insulated liner is super warm without being bulky. Whether I’m ripping laps at the resort or braving high winds on the summit, the 3-in-1 system is perfect for adapting to changing weather."
Weather in the mountains can shift on a dime, and the Marmot KT Component 3-in-1 Jacket keeps us ready for anything. Built with GORE-TEX® 2-layer waterproof technology and fully seam-taped construction, the shell shields us from unexpected storms and biting winds. When temperatures drop, we zip in the Thermal R insulated liner, designed with Pertex Quantum® fabric to trap heat and block out the chill without restricting our movement.
This jacket is our go-to for versatility, whether we’re lapping the lifts, hiking into the backcountry, or grabbing post-ski beers in town. Thoughtful features like waterproof zippered pockets, a removable storm hood, and an adjustable fit make this 3-in-1 system the ultimate layering piece for unpredictable winter days.
Details
- Versatile 3-in-1 jacket adapts to changing mountain weather
- GORE-TEX® 2-layer shell provides waterproof, breathable protection
- Thermal R insulated liner jacket adds warmth and zips out when needed
- Pertex Quantum® fabric improves insulation performance and blocks wind
- Removable storm hood with brim and peripheral adjustment for coverage
- Fully seam-taped construction keeps moisture out during heavy storms
- Waterproof chest, sleeve, and hand pockets keep essentials secure
- Item #MARZA0M
- Shell Material
- [membrane/laminate] 2-layer MemBrain, [face fabric] 100% polyester
- Removable Liner Material
- [face fabric] ripstop nylon, [insulation] Thermal R polyester
- Seams
- [shell] fully sealed
- Fit
- regular
- Length
- hip
- Center Back Length
- 30in
- Hood
- zip-off storm, laminated brim
- Pockets
- [shell] 2 zippered chest, 2 zippered hand, inner media, zip sleeve, [liner] 2 hand
- Venting
- core, underarm
- Powder Skirt
- yes
- Claimed Weight
- 1lb 9.3oz
- Activity
- skiing, snowboarding, hiking, camping
- Manufacturer Warranty
- limited lifetime
Reviews
Q&A
What do you think about this product?
Overall Rating
4.5 based on 16 ratings
Review Summary
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Selecting an option will reload the available reviews on the pageApril 21, 2025
A great coat with a few areas for improvement.
[This review was collected as part of a promotion.] I purchased this jacket to replace a Marmot Bastion Component 3-in-1 jacket that I purchased in 2008. The seems like a reasonable replacement though with a few drawbacks. First, the things that are great: the Gore-Tex is a trusted product and it sheds water quite well and breathes as good as any membrane. Definitely a nice upgrade. The design, cut, and quality all seem top notch. This will likely be another 15-year coat for me. The pocket placement is generally good. The hood adjustment points are perfectly placed. The sleeves are an ideal length. So much to love about this jacket. Three drawbacks keep me from giving it 5 stars: 1. This coat is heavy. The Bastione was no lightweight, but the outer waterproof layer is one of the heaviest non-insulated coats I've owned. (I know my subsequent complaints are about lack of zippers which just add weight, but it is really the outer shell that seems unreasonably heavy - likely a feature of the Gore-Tex.) 2. There are no pit-zips in the insulating inner layer - a downgrade from the older Bastione. I tend to sweat easily, and additional ventilation would be nice. 3. The end of the sleeves have a weird sort of rolled cuff which can look a bit wonky. Not sure the design reason for it, and it isn't a big deal, but it leaves an open question as to whether or not the sleeve is straight. 4. It would be nice to have a chest pocket on the internal, insulated jacket for when wearing it separately. That is the only thing that makes you nice you are wearing part of a 3-in-1 rather than a stand-alone synthetic puffy.
Originally reviewed on marmot.com
April 11, 2025
Ski jacket
[This review was collected as part of a promotion.] It’s a cool jacket, better than I had anticipated, good fit, seems solid
Originally reviewed on marmot.com
April 8, 2025
durable and comfortable
[This review was collected as part of a promotion.] had this jacket for 10 years. it is still in use - amazing
Originally reviewed on marmot.com
April 3, 2025
Great jacket
[This review was collected as part of a promotion.] This is a great jacket. It looks and feels bulletproof. It isn't quite as warm as I was expecting, since the insulating liner could be a little heavier, but I knew it wasn't a full fill when I ordered it.
Originally reviewed on marmot.com
April 1, 2025
A great ski jacket for layering
What I most like about this jacket is that it fits me well, yet is roomy enough to layer up for those colder days on the mountain. I returned a more expensive jacket from a competitor because it was a snug, athletic fit and didn’t leave enough room for layering. Personally, I don’t care about the ability to convert the jacket to a shell, and I would have preferred deep glove pockets inside the jacket instead. But I didn’t ding it for that because the jacket is as advertised. Overall it’s the quality you’d expect from Marmot. I have used it on one ski trip already and I am happy with it, particularly at the sale price.
Originally reviewed on marmot.com
March 31, 2025
Great experience so far (2 days out Spring skiing)
[This review was collected as part of a promotion.] Great jacket. My only gripe is that the zippers get caught more easily than on my Rossignol. One thing I had not counted on was just how great the liner is as a standalone synthetic puffy. So far I am only using them separately, as I got this for Spring skiing.
Originally reviewed on marmot.com
February 6, 2025
Almost Perfect
This is one of my favorite jackets and I’ve got a closet full of I hope they never discontinue this. The pockets are in all the perfect places. Someone finally realized that the forearm is where you put the pass pocket. The removable hood is a must as hoods just don’t work for riding. They are fine for walking around town but when riding in heavy terrain peripheral vision is mandatory. The inner layer jacket is perfect and I wear it with all my jackets unless it’s a warm day. Super comfy and I’ll wear it on its own as well. Goretex is a must where I ski in the Sierra and all other brands fall short. I don’t waste my time with anything else. The sizing is accurate and nothing out of proportion. The only fault I can find with the jacket is the black color has faded significantly. Yes, I do wear it a lot but I’ve never had a jacket fade like this. Also, since this is the perfect jacket it should be offered in an array of colors. Red, blue, green, yellow, orange, gray, tan, black. Just go solid colors and don’t try silly ugly combos like North Face does.
Originally reviewed on marmot.com
January 11, 2025
Good Fit for Layering, Nice Shell, Warm!!
Purchased for skiing in the northeast, so needed warmth and flexibility. I believe I found my next favorite jacket. The 3-in-1 is nice and sized well at XL for a guy who can fit into a L but finds that too tight in the shoulders (after all, you have to keep your arms forward with poles). Great wind protection and comfortable feel, which means room for layering up on cold ski days (<10 dF). I have not separated the liner yet, so do not have any input on the pieces individually. The Gore-Tex shell is really nice and the line coat is warm in the set. I would recommend it as a warm and relaxed coat for the piste.
Originally reviewed on marmot.com
May 7, 2024
Dave W
[This review was collected as part of a promotion.] Jacket fits well seems true to size. The only downside, which is minor, is the zip out liner is kind of an ugly color. That did not stop me from buying the jacket. I would recommend the jacket.
Originally reviewed on marmot.com
April 20, 2024
good value at current sale price
[This review was collected as part of a promotion.] Good value at current sale price, but would not have considered this jacket at its regular price. Consider sizing down by one size if you will primarily wear the Gore Tex outer layer alone (without the internal jacket).
Originally reviewed on marmot.com
Do you have a question about this product?
March 21, 2025
Is the Gore-Tex in this item FREE of forever chemicals?
Originally reviewed on marmot.com
February 2, 2025
Am I right that neither jacket has hand pockets?
Originally reviewed on marmot.com
January 8, 2025
Is the hood removable
Originally reviewed on marmot.com
February 26, 2024
Can this jacket be decompounded into 2 different jackets that are sold separately at this website? For example, Refuge Jacket and Echo Featherless Jacket? Or these are different jackets and combining them won't be equal to this 3 in 1 jacket?
Originally reviewed on marmot.com