I am often asked by our brand partners which construction is better for a mountaineering helmet: hardshell or in-mold? After 17 years, my answer is always: it depends on the mission. For long, grueling expeditions where a helmet will be abused for weeks on end—strapped to packs, scraped in chimneys, and generally beaten up—the incredible durability of a hardshell helmet is often the right choice. Its tough ABS shell can withstand a thousand minor impacts and abrasions. However, for 'fast and light' alpine-style ascents where speed is safety and every gram is a burden, the in-mold mountaineering helmet is the undisputed king. Its featherlight construction significantly reduces neck fatigue, allowing the climber to move faster and more efficiently. At SPIRIT, we have mastered both technologies. We can engineer an exceptionally durable hardshell or a sub-200-gram in-mold helmet, allowing our OEM partners to offer their customers the perfect tool for their specific objective.