Lightweight Next-to-Skin Performance
Build your day on a solid foundation with the K1 - Primus Long John baselayer. Wool balanced with synthetic fibers delivers long-lasting durability, simple wash cycles, and the fast moisture transport your layering system needs. Flat seams ensure bulk-free layering, and a specialized fly provides support and fuss-free access (even with gloves).
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.
The Ballhalla™ fly keeps you comfortable all day long with anatomical support and minimal bulk, and the unique design ensures easy access even while wearing gloves.
Flat-seam construction ensures all-day comfort, delivering a smooth next-to-skin feel and reducing bulk when layering up.
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)7.1 oz.
Trade Agreements Act Compliant
Designed in Seattle. Imported.
Great piece of kit.
I have purchased a couple of pair of these. Great fit at a good price. I wore them this past weekend on a camping trip, Friday night got pretty cold and these helped to keep me warm. Great quality as I have come to expect. I see these serving me well for years to come.
I wore the Primus K1 long John on a turkey hunt last week. Temperatures in the morning were in the 30s. Midday temperatures in the 60s.
This base layer kept me comfortable all day
Love this. I haven't had much time to use it (the time of year) but top notch construction that I know will last a long time.
Not only are these comfortable and sleek but these are probably will be my go to base layer. Its thin but it doesnt sacrifice quality. I have two pairs and theyve been the best I’ve owned.
Need Help? Contact us with any size or fit questions. 206-767-0307
Primus K1 Long John
Height 5' 8" - 6' 2"
Short: -2 Inches Inseam
Long: +2 Inches Inseam
Waist Preferred Pant Waist
Hip 7" Below Preferred Waist
Inseam Regular Crotch to floor
Standard True to Size | Active Layering
Expedition Oversized | Static Layering