The Arma Tech 1/2 Zip is a high-performance base layer built for demanding conditions and dynamic environments.
It’s part of Kryptek’s premier Altitude Collection, designed for active movement and thermal regulation.
This layer combines next-to-skin comfort with technical mobility in cold-weather or high-elevation missions.
Whether you're glassing ridgelines, hiking steep slopes, or stalking game, this piece keeps your core in check.
It regulates body heat and wicks moisture to keep you warm, dry, and ready for action.
Made from a 91% polyester and 9% Merino wool blend, it delivers durability, stretch, and performance.
The synthetic exterior pulls moisture away and dries quickly during intense movement or long hikes.
The Merino backer offers soft touch, thermal regulation, and comfort in a wide range of conditions.
Worn next to the skin, this layer manages sweat and body heat efficiently.
Its smooth finish adds comfort and strength while minimizing friction under outer layers.
The 1/2 zip design gives you quick ventilation when temperatures or exertion rise.
A 4-way stretch fabric provides excellent freedom of movement in any position.
The athletic, anatomical cut stays close to the body for ideal layering performance.
Wear it alone in mild weather or as a base layer under a fleece or shell.
Pair it with the Arma Fleece 1/2 Zip or Arma Hoodie for maximum field efficiency.
Key Features:
Altitude™ Camo Pattern: Kryptek’s exclusive alpine concealment for high-elevation and open terrain
Polyester-Merino Blend (91% / 9%): Combines moisture-wicking tech with thermal regulation
Silvadur™ Antimicrobial Technology: Prevents odor and bacteria without affecting feel or performance
Next-to-Skin Moisture Wicking: Manages sweat from the base layer level
1/2 Zip Ventilation: Regulates heat and increases airflow during high activity
4-Way Stretch Fabric: Enhances mobility and comfort
Athletic Cut & Anatomical Shape: Built for layering and unrestricted motion
Highly Breathable Bicep Pocket: Secure, low-profile storage option
YKK® Reverse Coil Zipper: Smooth, durable, and low-profile front entry
Technology Spotlight – SILVADUR™ Antimicrobial
SILVADUR™ uses polymer-bound silver ion technology to fight bacteria and odor-causing microbes on fabric surfaces.
This treatment helps extend the life of the garment by preventing odor, yellowing, and microbial damage.
It neutralizes odor on contact and keeps the shirt fresher for longer wear cycles.
Silver is a trusted, time-tested antimicrobial safe for skin contact and long-term use.
SILVADUR™ distributes silver ions evenly for consistent and lasting protection.
It does not leach or harm your skin’s natural bacteria or microbiome.
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