North American Fishermen Can Finally Gear Up with Zerofit – The World’s Warmest Baselayer®

Great news for fishermen across North America – staying warm during those early morning casts and chilly winter expeditions is about to get a whole lot easier. Zerofit, proudly known as The World’s Warmest Baselayer®, is now available across the continent as the brand continues its exciting expansion throughout the Northern Hemisphere.

Designed to keep anglers comfortable even in the harshest conditions, Zerofit is redefining cold-weather fishing gear. Whether you're casting from a frozen dock or braving the elements on open water, Zerofit’s innovative technology ensures you stay warm, focused, and ready for the catch.

Why the Zerofit Heatrub Ultimate Baselayer Is a Game-Changer for Cold-Weather Comfort

When it comes to staying warm in freezing conditions, not all baselayers are created equal—and Zerofit is proving exactly that. Priced from $90, the Zerofit Heatrub Ultimate Baselayer has been independently tested and found to be five times warmer than leading competitors. Yes, you read that right—five times!

This isn’t just marketing hype. At the respected Boken Institute in Osaka, Japan, the Heatrub Ultimate earned an impressive heat retention rating of 0.78. To put that in perspective, standard baselayers usually score between 0.1 and 0.14, and even your go-to cozy sweater typically lands around 0.3.

So whether you're braving icy winds on a boat, working outdoors, or simply enjoying a winter hike, the Heatrub Ultimate is built to deliver unmatched warmth and performance—making it a must-have for anyone who refuses to let the cold slow them down.

Trusted by The Angling Trust, our award-winning Heatrub Ultimate Baselayer & Leggings are a game-changer for cold-weather fishing. Plus, check out our ultra-warm socks and more essentials designed for anglers who never let the cold stop them.
 Stay by the riverbank, lakeside, or out at sea longer—ZEROFIT. .Because when you're warm, you fish better.

Stay Warm Without the Squeeze – The Secret Behind Zerofit’s Heatrub Technology

What sets the Zerofit Heatrub Ultimate Baselayer apart? It’s all in the tech. Inside the fabric, advanced 'Heat Threads' come to life with your every move—gently brushing against your skin to generate warmth instantly. No waiting, no shivering.

Unlike traditional baselayers that rely on tight compression to trap heat, the Heatrub Ultimate keeps you warm without restricting your movement. That means you can cast, stretch, and move freely—all while staying toasty. For anglers who value comfort and performance, it's a total game-changer.

Smart Fabric, Smarter Comfort – Meet the Zerofit Heatrub Move

Built for active days in slightly milder weather, the Zerofit Heatrub Move is all about keeping you comfortable and dry—no matter how intense your day gets. With a clever blend of 45% polypropylene on the inside and a hollow polyester shell on the outside, this baselayer works hard to regulate your body temperature while you stay focused on the task at hand.

As you move, sweat is quickly drawn away from your skin, and thanks to Zerofit’s innovative LABO fabric, it evaporates fast—so you’ll never be stuck with that clammy, cold-sweat feeling again.

Perfect for temperatures between 23°F and 53°F, the Heatrub Move is ideal for early morning fishing trips, active winter sports, or just staying comfortable on crisp, cool days.

Find Your Perfect Fit and Color

The Heatrub Ultimate Baselayer comes in black, white, gray, red, green, and navy, giving you plenty of options to match your gear. The Heatrub Move is available in black, white, and titanium—ideal for more active days in milder cold. Want full-body warmth? Grab the Ultimate Socks and Leggings in classic black.

 Explore the full range at zerofitusa.com