The revolutionary product series Devold? Tinden Spacer combines great insulation with lightweight performance. This is the first time the Spacer fabric has ever been combined with wool; where you create pockets of air for enhanced insulation. This innovative technology makes it possible for wool to compete with other garments with high warmth-to-weight ratios. These products will also keep their natural wool properties like the ability to regulate body temperature and create warmth even when wet. The Spacer series consists of several light weight, yet super insulating mid-layers.