Men's ColdGear® Reactor Jacket

Style # 1303058
$280.00 AUD
Height: Size: Fit: Fitted
Size and Fit Guide
Due to limited quantities, only 10 allowed per customer.
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Height: Size: Fit: Fitted
Men's ColdGear® Reactor Jacket

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Product DNA

ColdGear® Reactor is truly intelligent insulation. It's warmer when you're less active but cooler when you get moving.
  • Fitted: Next-to-skin without the squeeze
  • UA Storm technology repels water without sacrificing breathability
  • Windproof construction protects you from the elements
  • ColdGear® Reactor adapts to your activity level for the right breathability & warmth for what you're doing
  • Lofty insulation with a unique quilting pattern that traps heat, but still allows air to flow so you don't feel stifled
  • Strategic insulation (80g body/60g sleeve) to give you extra warmth where you need it
  • UA's exclusive MagZip closure clicks & holds together for easy, struggle-free zipping
  • Warm, secure zip hand pockets & interior chest pocket
  • Adjustable hem
  • Chin guard
  • Packs easily into chest pocket
  • Shell: 100% Polyester
  • Insulation: 100% Polyester
  • Lining: 100% Nylon
  • Imported


This is what makes our gear work harder—and smarter—than anything else out there.


This is the layer athlete’s trust when the mercury drops. ColdGear® eliminates the need to wear heavy, bulky gear in cold weather.

Review Summary

5 Reviews

One of lightest most comfortable jackets ever.

Bought this jacket based on description alone thinking, if it keeps snow active users warm, it would be great for me to golf in. I was not wrong! I own several UA jackets and they are all great. This one however, is my new favorite! Whether walking or riding on the course, this baby keeps me warm, dry and comfortable! I doesn't allow me to overheat and is non-restrictive so I can swing freely and never feel that dreaded "I have too many clothes on" feeling (you winter golfers know exactly what I'm talking about.) Thanks UA for always being ahead of the pack with design, innovation and quality.

Sizing is confusing (Runs in both loose and fitted cuts, depending on the category)

I got this in Medium "fitted cut," under "Men’s Ski & Snowboard Jackets & Vests" category. The sleeves are way too long and loose at the biceps on these, compared to the torso, which is good. The Small "loose cut," under "Men’s Jackets" category, was a better fit for me, but didn't have the color I wanted. Same torso sizing as the Medium "fitted cut" but with perfect arms. This tends to happen with most UA products loose vs fitted, forcing buyers to choose between Small and Medium, and causing returns. I hope UA addresses this. I own both jackets above. The inside chest zippers tends to get stuck on the fabric. Also, the main zipper snapped (2nd magzip jacket to do this). Comfort, performance and function is great otherwise. Nice water resistance and wind-proofing. Perfect warmness and works well for Winter sports activities or in the rain. Extremely lightweight.

Very Versatile! Extremely Comfortable

Now, before you questing the 5 stars, maximum comfort and performance. I need to tell you all of the things this jacket went through. I bought this jacket on New Years Eve at #UAChicago and it wasn’t actually planned. I had a jacket already but was slightly small. During New Years in Chicago, the temperatures had an average of what I would say is exactly 0°F which is around -17.5°C. I wore this jacket walking outside Chicago for at least an hour straight and not once would I complain or have any problem with it. Also, the jacket is so thin and is a huge shock on how thin it is yet still a great heat retainer if you haven’t used another Under Armour jacket. The week later, I came back to Ohio where rather than temperature being the enemy...snow took over. There was so much snow and even freezing rain a couple times. During the snow, the jacket held up great and didn’t get snow dotted like a lot of black jackets do because of its exterior material. Also, during the freezing rain, the jacket was incredible. It worked perfectly, and I was outside for at least 45 minutes running. During all of these conditions, the jacket has been my go to during the current winter and is a great piece to add to your collecting as it is light for running, thin so you don’t look like a marshmallow, and warm, so you don’t get cold(duh). This review is getting really long so I’m just gonna say my 2 complaints and the only time I ever noticed something I didn’t like with the jacket. 1. The pocket’s zipper got caught on the lining.(Not the jacket’s fault) 2. The stash pocket is huge and goes really low but depending on what Phone you have or what you will put in there, you might not mind it. Also, the stash pocket doesn’t have a stitched hole for earbuds, but honestly, you don’t need wires when Under Armour sells 3 different types of wireless earbuds which I recommend checking out as well. Overall, I HIGHLY recommend this jacket.


From fit and form to versatility, warmth and comfort....this coat is perfect. I received this coat in heather gray as a gift and loved it so much I just ordered a blue one. Couldn’t be more pleased.

Tiny Jacket for tiny humans

This thing is small, much smaller than expected based on other UA jackets I own. Felt about 2 sizes smaller than that stated on the label. Sleeve and body length were shorter than expected. Maybe I got a bad one? No idea.