The One long sleeve top from OMP has been updated and improved to comply with the latest FIA 8856-2018 approval. It retains the DRY SYSTEM technology but now also comes prepared for 'advanced cooling' which is triggered using a unique activation spray (available separately).DRY SYSTEM provides excellent breath-ability to regulate body temperatureAdvanced cooling ready for increased cooling when requiredUltra flat, anti-rubbing seams increase comfort with reduced pressure pointsLightweight stretch knit Nomex for a close and comfortable fitOMP's latest One underwear range has been developed to help regulate the body's core temperature which, in turn, reduces the heart rate and perspiration. This results in reduced fatigue and stress and thus optimises driver focus which is beneficial in any level of Motorsport. OMP utilise the very best technical materials available to offer drivers the most comfortable and revolutionary underwear. This is reflected by the underwear being used by high pr