4SR functional underwear can be used as a base layer not only for motorsport, but for any high-intensity sport. We recommend it as a base layer under a racing suit, as it makes putting the suit on easier and ensures comfort while riding.
Putting on a racing suit is perhaps the least enjoyable part for any motorcyclist. Even if the rider is a seasoned veteran and flexible as a reed, suiting up isn't something you exactly look forward to. Sometimes it's just plain tough. At 4SR, we're well aware of this, which is why we've been offering functional underwear tested by racing riders for several years. This year we're adding a new “Seamless” model to the range, designed to perfectly secure you while riding thanks to compression panels over the muscle groups. Its new fabric composition has a cooling effect and, at the same time, makes putting on and taking off the suit easier. The advantage is that our underwear can be used as a base layer not only for motorsport, but for any sport with high-intensity exertion.
or choose from one of the 4SR sales locations.