Lightweight Next-to-Skin Performance
Build your day on a solid foundation with the Primus K1 Pullover baselayer. Wool balanced with synthetic fibers delivers long-lasting durability, easy wash cycles, and the fast moisture transport your layering system needs. Flat seams ensure bulk-free layering, and thumbhole cuffs combine with a ½-zip front to offer adjustable warmth.
Our wool combines with synthetic fibers to create the ideal performance fusion for moisture management: wicking up and lifting out sweat, protecting against odors and wash shrinkage, increasing durability, and ensuring next-to-skin comfort. Your system’s moisture transport starts here.
Flat-seam construction ensures all-day comfort, delivering a smooth next-to-skin feel and reducing bulk when layering up.
Thumbhole cuffs extend coverage for warmer hands, and a 1/2 zip front helps shed extra heat in a hurry.
K1 - PRIMUS
WHEN TO USE
Below 50° F as a next-to-skin baselayer.
PAIRS GREAT WITH
Active insulation and softshells.
BENEFIT OVER OTHER LAYERS
Highly breathable, fast-drying layer that can have any other layer worn over it.
Learn more about layering:VIEW SYSTEM BUILDER
Body Material2.7 oz. piqué 78% polyester/27% wool
Weight (Size L)8.5 oz.
Trade Agreements Act Compliant
Designed in Seattle. Imported.
Pleased with purchase... this is not an item that you throw in your drawer and forget about as is very versatile worn on its own or as part of a layering system. I am usually a medium but purchased a large as plan to get a lot of use out of it and so didn’t want to worry about shrinkage down the road.
Pullover feels great and keeps you warm. Worked well in recent Texas cold weather spell in layering with other pieces.
Was looking for gear that could handle large flux in temperature for a variety of purpose both military and civilian clothes travel. The top can be worn stand alone, I’m usually between a medium and large depending on my discipline at the gym and the large fits well and snug (as it should being a base layer) and the bottoms fit good even though I’m a 34 pant with a ghetto donk. I recommend them and can’t wait to utilize your gear in an upcoming trip to a high desert where the temperature will fluctuate between -20 and 30 degrees.
A perfect outdoor workout pullover during these COVID times! While the Wife was a bit suspect about the huge hood/gaiter at first, it's the perfect occasional face covering when running into other people on the trails or streets. I suspect it will be a perfect built-in neck warmer for skiing as well.
Great design. Fit is a little tight but not too tight. Very soft, does not make me itch like other baselines have. Already used it hiking a couple times and am eager to try out more of Beyond Clothings' offerings.
Need Help? Contact us with any size or fit questions. 206-767-0307
Primus K1 Pullover
Height 5' 8" - 6' 2"
Short: -2 Inches in Sleeve and Torso
Long: +2 Inches in Sleeve and Torso
Chest Widest part of chest
Sleeve Center back of neck to shoulder seam to sleeve hem edge
Standard True to Size | Active Layering
Expedition Oversized | Static Layering