Set a new standard in foundational safety with the K1 Eclipse Seamless Fire-Retardant Long Sleeve Undershirt. Expertly engineered from an advanced blend of fire-retardant Viscose and Nomex® fibers, this essential base layer is FIA 8856-2018 homologated. This certification ensures full compliance for competition in the United States and internationally, offering uncompromising protection and usability.

The innovative seamless construction of the K1 Eclipse is designed to prevent the irritation and chafing caused by traditional threads, allowing you to maintain full concentration on the track. This high-performance fabric also provides superior moisture-wicking, actively managing perspiration to keep you cool and dry under the most demanding race conditions.

A supportive, athletic compression fit ensures the undershirt moves as an extension of your body, providing total upper-body freedom for precise steering inputs. Built to meet the demands of all motorsports, the K1 Eclipse is the premier base layer for any serious driver.