New ITRA Brand Partner: Runderwear

We're thrilled to welcome Runderwear as an official ITRA brand partner, a collaboration built on a shared passion for helping runners perform at their best.

Runderwear creates high-performance running underwear and base layers designed to eliminate chafing and discomfort. Crafted with seamless technology and breathable, moisture-wicking fabrics, every product is engineered to keep runners cool, dry, and focused no matter the distance or terrain.

Whether you're climbing mountains, tackling technical trails, or chasing a new PB, Runderwear's ergonomic designs deliver the comfort and support you need to go the distance, mile after mile.

As an association, we’re proud to partner with a brand that shares our commitment to performance, innovation, and the trail running community. Together, we’re championing gear that empowers runners to move freely and confidently, from start to summit.

Purchase your Runderwear products by clicking this link.