An new concept in active insulation, the OMM Women's Core Fleece Jacket is made entirely from PRIMALOFT® NEXT ultra-light insulating fabric. Built from a synthetic plume woven through a knitted mesh, it offers the warmth of a fleece with less-than half the weight. Paired with a shell, the fleece jacket is an incredibly effective insulator, but, thanks to near-total air permeability, the lightest breeze can take away that heat. This means you can keep your Core layer on even when you have warmed up, also allowing you to thermoregulate by removing/unzipping your low bulk shell. Plus, it works well wet or dry and is finished with quick-wicking properties to ensure you won’t stay wet for long.