Obermeyer uses this premium, patented insulation from Dupont in the majority of their adult outerwear. ComforMax utilizes ultra-thin, non-woven fibers to trap air, and reflect the body's radiant heat, for maximum thermal efficiency. These qualities also work to minimize the overall bulk of the insulation, when compared to similar products from other brands. ComforMax also incorporates an open-pore structure. The benefit of this type of construction is that it helps inhibit the buildup of moisture within the garment, effectively increasing breathability and minimizing dry time.