Targeted
Protection
Below the Belt
Cold-Weather
Base Layer for Men
Made in the USA
Stay Warm
Where It
Counts
Fleece Lined
Wind Resistant
Photo by Kelly Randolph, used with permission
by the American Birkebeiner Ski Foundation®
by the American Birkebeiner Ski Foundation®
Cold Weather Gear for Your Privates?
You Bet!
Fleece lined and wind resistant. For premium warmth in the coldest conditions, we use Polartec® fleece. Its lofted structure creates and holds thermal air pockets. You get premium warmth where it matters most.
Help for Your Most
Sensitive Area
Finally, a base layer built to keep you warm where traditional approaches to layering leave a gap. PolarJock is fleece lined and wind resistant, engineered to protect where the cold hits hardest. It’s designed for targeted protection, freedom of movement, and total comfort, all without overheating or extra bulk.
From Working Out to
Out There Working
Built for Your
Coldest Days
Fleece-Lined + Wind-Resistant — Full comfort without bulk
Sub-Zero Protection — Warmth you can count on in extreme temps
Frostbite Prevention — Shields your most vulnerable zone
Premium Pouch Design — Room to move, insulation where it matters
Durable Construction — Built for daily use in demanding environments
Targeted Warmth
No Bulk
Flexible, All-Stretch Materials — Moves naturally with your body
Warmth without the Weight — No bulky layers, forget it’s even there
No-Roll Waistband — Stays put under layers and during activity
Athletic Trim Fit — Works under race kits and workwear alike
No-Bounce Support — Ideal for running, skiing, cycling, and active movement
Click Here for more reviews
Winter Fat Biking in the Yukon, Canada.
Wore it in the February 2024 100-mile
Yukon Arctic Ultra. A key piece of equipment.
Fit and comfort was excellent.
Scott H. — Yukon, Canada
Super warm, comfortable and lightweight
for skiing and running. It cuts the wind without having to wear so many layers. And, it has
protected me from frostbite more than once!
Terry T. — Wisconsin
For Every
Kind of Cold
Don’t let the cold hold you
back or cut your day short
Wherever the
Cold Takes You
Long runs, fresh tracks, miles of open trail
