What Our Gearhead(R) Experts Are Saying: "I use the Rush TRK GTX when I need a burly boot that won't slow me down. It's supportive enough for multi-day backpacking trips but still feels light and agile on fast-moving day hikes. The PRESA outsole grips on everything, and the ankle collar is one of the most comfortable I've worn-no break-in needed." From rugged mountain treks to long-haul missions with a pack, the Scarpa Rush TRK GTX Boot delivers the confidence, protection, and agility we rely on. By blending the structure of a backpacking boot with the dynamic feel of a trail hiker, it gives us the best of both worlds-ideal for tackling technical terrain without feeling overbuilt. The 1. 8mm suede leather upper with GORE-TEX(R) ePE lining offers waterproof, breathable protection with PFAS-compliant materials, while the 3D Auto-Fit Ankle Collar enhances comfort with stretch fabric and molded foam. Underfoot, Scarpa's PRESA(R) TRK-01 outsole grips variable terrain, and the Dynamic Stabilizer Torsion (DST) frame delivers rearfoot control and torsional support so we can move with precision and stability, no matter what's underfoot.