Raidlight and Le Slip Français join forces to design new underwear for Trail Runners.
A collaboration, Made in France, creating comfortable, high performance underwear, designed
by athletes for athletes, the Endurance Trunk and the Performer Brief
give the support and comfort you have been searching for when Ultra and trail running.

Core Values

A Made in France Partnership

Core Values

Carbon Footprint

Chaussettes MARATHON

Des chaussettes de sport mixtes qui répondent aux besoins spécifiques
des traileurs.


Endurance Trunk

Raidlight and le Slip Français working together to create technical underwear.


Performer Brief

Combining Raidlight's expertise in trail running and the specialist knowledge of L.S.F in underwear.