Trail running demands more than endurance. Athletes must constantly adapt to changing terrain, elevation, and environmental conditions, often over long distances and extended periods of isolation. Jisub Kim has built his strength in this demanding discipline by focusing on consistency and control rather than short bursts of performance.

Growing up in Wonju, surrounded by mountainous landscapes, Kim developed both physical resilience and mental endurance early on. His experience in military service further reinforced his ability to stay composed under pressure. These qualities have translated directly into his performance in major competitions, including a podium finish at Ultra-Trail Mt. Fuji, victory at The North Face 100 Gangwon, and a recent win at Hong Kong 100.

For Kim, maintaining rhythm over time is more important than speed alone. During training and races, he sometimes uses audio to regulate pace, but in trail environments, being aware of surrounding conditions is essential for safety and performance. In this context, Open-Ear headphones like Shokz fit naturally into his routine, allowing him to stay connected to both his pace and his environment.

Rather than relying on specific gear, Kim focuses on creating a training environment that supports consistency. For a trail runner navigating unpredictable conditions, that balance plays a key role in sustaining performance over time.