Engineered for unpredictable alpine conditions, the Norvan LD4 GTX pairs a waterproof GORE-TEX liner with a durable, PFAS-free woven upper to provide full weather protection without sacrificing lightweight agility. Its dual-density midsole and stabilized geometry deliver a supportive, shock-absorbing ride over technical terrain, keeping you comfortable across grueling miles. Up top, targeted TPU reinforcements safeguard high-wear zones against trail debris so you can tackle muddy single-track and rocky descents with confidence.