With the extra layer for the descent after your ski tour, cold won't hold you back. Thanks to the side zipper, you can quickly pull the thermal skirt over lighter ski touring pants at the summit. Additionally, stretch inserts provide plenty of freedom of movement. The fully recycled Pertex® Quantum outer material is lightweight, offers maximum thermal performance, and repels drizzle and snow. The lightweight and compressible synthetic insulation is made from recycled polyester and Sorona™ fibers derived from renewable plant materials. Is it warmer than expected? Then quickly pack the Aenergy IN Skirt into the integrated pocket.