The Roark Evolve Hoodie uses PrimaLoft Active Evolve fabric to actively regulate temperature as effort rises and falls over a run. That same responsiveness means the hoodie breathes through a hard climb and holds warmth again once the pace eases, without a layer change. A full-coverage hood steps in for a buff on cold mornings, while underarm gussets and flatlock coverstitched seams keep movement free and chafe-free mile after mile. What Our Gearhead(R) Experts Are Saying:"I started a cold morning run in this and never once felt like I needed to stop and shed a layer, even once I hit the climb."