Kelvin Active Jacket [NEW]
A necessity for any true backcountry outing, the Kelvin Active Jacket features 80 gram Polartec® Alpha insulation for maximum versatility - an ideal outer layer in mild conditions and perfect insulation under a shell when the mercury plummets. Soft, quiet and breathable, this workhorse knows no off season.
- Shell // 20 denier stretch Nylon Ripstop w/ DWR Finish (40g, 100% Nylon)
- Liner // Breathable Polyester Mesh Lining treated with Polygiene
- Highly breathable & thermally regulating.
- Fast drying with increased air exchange.
- Concealed hand pockets & exterior zip chest pocket.
- Packs conveniently into chest pocket.
- 80 g/m2 Polartec® Alpha Insulation
- Polygiene Odor Control Technology
13.7 oz // Large
Our lightest of insulation options, the Kelvin Active Jacket is quiet, comfortable and breathable, designed to be worn from dawn to dusk through all forms of exertion levels.
Lightweight & Packable
The Kelvin Active Jacket is single-minded in its intent: ultralight, packable and warm. This minimalist mid-layer wraps your upper body in 80 g/m2 Polartec® Alpha synthetic insulation, delivering highly efficient temperature maintenance even when wet.
Your stalk may continue; there is no longer a need to shed layers to release excess heat. Polartec Alpha Active is a non-migrating lofted fleece insulation that offers superior breathability and moisture management allowing us to construct a garment with a more open face or liner fabric. By keeping moisture vapor moving freely through the fabric it increases overall air exchange and drastically speeds up dry times. This advancement increases thermal adaptability in changing conditions and different phases of physical activity.
Zippered chest pocket secures your necessities and doubles as a stuff sack, while hand warmer pockets offer additional warmth. Designed to be worn under ultralight outer layers like the Dewpoint or Mountain Jackets, or as an outer layer in earlier seasons, the Kelvin Active Jacket is the cornerstone of your light and fast backpacking system.
January 20, 2018
Love the pattern and the design, very lightweight. But I think the sizing is a bit off. I'm 59", 170 pounds, and the medium fits so tight on my chest I can barely zip it. Also bought the mountain pants, and they are awesome.
December 26, 2017
Really lightweight but very warm nice fit. Except wish it was longer.
December 24, 2017
I want to start this review by saying I had very high expectations for this jacket. From what I had seen in videos and read this was supposed to be the ultimate insulation layer, keeps you warm when stationary, but breathes very well when active. Well upon receiving it the first thing I noticed was how lightweight/thin of a jacket it was this gave me my doubts. Then I had a chance to use it for a late season elk hunt in western Washington. 4 out of 4 stars! This did not disappoint at all! I put it on in the morning and never took it off. It was exactly what I was hoping for, can definitely feel the warmth when you're wearing it and is great under the Thunderhead jacket. I even wore it to sleep in for added warmth. But I never got too hot when wearing it solo or layered. Idk how they did it but it's great. The body is a little short but it was made this way so it isn't sticking out underneath other jackets when used as a layer. I'm 5'8" with athletic build and with Sitka performance fit I wear a large and this fit the same. Great jacket, I highly recommend it.
November 13, 2017
Just a regular dude here. The hype is real...Soft, quiet, drys quickly, and is lightweight. Makes a great pillow in the sleeping bag. It's almost like a really intense base layer in the sense that it's warm, but wicks away moisture. It's bizarre; no other jacket like it and I recommend you check it out.
October 17, 2017
Not sure how they do it. I have the Kelvin Lite, the Kelvin Ultra Down, and the Kelvin Active. All excellent pieces and all seem to be designed for something different. I didn't think it could get any better than the Kelvin Lite. Then the Kelvin Ultra Down came out. My absolute favorite piece. Being a little skeptical of their newest piece, the Kelvin Active jacket, I put it to the test. The previous pieces are mostly design for low activity to no activity. The Kelvin Active jacket somehow keeps you warm with low activity and vents heat during high activity without sweating. No clue how they do it but this jacket is a killer at have. Warmth without overheating.
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Does Sitka Gear have sponsored hunters?
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