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This product is for…
Trail runners and ultramarathon racers tackling serious mountain climbing, especially in longer efforts where transition speed and pack weight matter. Notes from rehab use and a foot/ankle specialist also suggest value for those needing extra stability on technical terrain.
Worth noting…
Multiple hosts report years of heavy use—including 100-mile mountain races and a 250-miler—without breakage. One host at 5'3" runs a 115cm length, and another (5'5") also uses 115; one note suggests sizing up as skill level increases.