susan T.
Zerofit Wonderfully Warm
Zerofit the ultimate wear is terrific and so warm you never want to take it off!
Response from Zerofit USAFeb 10, 2026
Thanks Susan, stay warm

"Mr Higashi launched the Zerofit brand in 2005, being a fitness fanatic, a single figure golfer and the owner of premium end Japanese golf hardware brand Giga he was constantly finding himself being cold while playing golf or doing more active sport such as running. Initially very technical active baselayer products were developed under the banner of ‘Smart warriors’. As the no 1 baselayer in Japan, Zerofit has only recently been made available for sale outside of japan. Zerofit successfully launched in the UK in Fall 2018 and is now launching in north america through our exclusive distribution partner ZF North America LLC, the only authorized wholesaler and on-line retailer of Zerofit in North America."
Zerofit USA (zerofitusa.com) has 508 customer reviews on Five Star Index, with an average rating of 4.8 out of 5.
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508 approved reviews, newest moderated first
susan T.
Zerofit the ultimate wear is terrific and so warm you never want to take it off!
Response from Zerofit USAFeb 10, 2026
Thanks Susan, stay warm
Craig F.
WOW....saw Charlie wearing this gear and ordered mine just before we hit the 20s here on the Eastern Shore of Maryland....the gear makes a huge difference!
Response from Zerofit USAFeb 2, 2026
Thanks for your time
Barry D.
Having just moved to Virginia from California, I wanted to figure out a way to not stop winter from hampering my motorcycle riding. Enter Zerofit. I just bought the Heatrub Ultimate top, bottom and socks. Rode this weekend in 40F (feels like 32F) and I was comfortable even at highway speeds. Great product.
Response from Zerofit USAJan 13, 2026
Fantastic review, thanks for your time
Jim W.
The ordering process was easy and the items arrived earlier than I had originally expected. The products are as great as advertised.
Response from Zerofit USAJan 5, 2026
Thanks for your time, stay warm
David P.
Fast delivery. Heatrub base layer is very warm. No need to wear a big coat over it in 20 degree F weather. Remember to order one size larger than normal. I plan to order gloves and a beanie also.
Response from Zerofit USADec 29, 2025
Thanks for the review David, stay warm
Steven L.
Product is really good. Easy to order and fast delivery.
Response from Zerofit USADec 25, 2025
Thanks for the review
John E C.
Fast, on time delivery even after exchanging because I ordered the wrong size. They immediately credited my account for the wrong size one that I ordered. And, to boot, the Ultimate Base Layer is exactly that -- ultimate. Easily the finest base wear I have now and I have some very fine merinos and ZeroFit beats them.
Response from Zerofit USADec 22, 2025
Thanks for the review, we love it when you take the time to write. Stay warm
David E W.
Great product with exceptional quality. True fit.