Primaloft® Gold Insulation sets the standard for insulating warmth in extreme conditions. Microfibers trap body heat to make this the most thermally-efficient synthetic insulation available, with water-repellency that insulates even in the wettest weather – maintaining 98% of warmth when wet. Further features of Primaloft® Gold include breathability, packability, and outstanding softness in an insulation made using 100% post-consumer recycled fibers.