The Helly Hansen LifaLoft Hybrid Insulator Jacket packs real warmth into a build that never feels heavy or stiff. LIFALOFT(TM) insulation traps heat without the loft and bulk of a traditional puffer, so it layers easily under a shell or stands on its own in a lightweight, windproof, water-resistant fabric. A hybrid shell adds stretch panels through the areas that need to move, keeping the fit close without pulling or bunching. It's built to go from a cold morning layer to a standalone jacket without missing a step. What Our Gearhead(R) Experts Are Saying:"I reached overhead loading gear onto a roof rack all morning and never felt the jacket fight me once."