What Our Gearhead(R) Experts Are Saying: "I've never worn a shell that moves like this. The Concurve feels tailored in motion-there's no bulk, no restriction, just full stride comfort and waterproofing that holds up through serious weather. It's my go-to for tempo runs and trail efforts when the skies are questionable."We've been chasing the perfect storm shell for high-output runs-and the Concurve GORE-TEX Jacket finally delivers. Engineered with an award-winning body-mapped design, this shell flexes and flows with us like a second skin, eliminating bulk and restriction even on tempo climbs and fast descents. Every panel has been precision-placed with Kinetic Garment Design to optimize movement while trimming weight and seams. The latest GORE-TEX ePE membrane technology brings the trusted GUARANTEED TO KEEP YOU DRY performance in a lighter, thinner, PFAS-free package that reduces environmental impact. The hood stays perfectly in place thanks to a secure magnetic buckle system-no flapping or fumbling mid-stride. With subtle reflectivity, taped seams, and breathable protection that works with or without a light pack, the Concurve is a next-gen shell made for next-level miles.