Training Wool is a thinner wool baselayer for active training in all temperatures. Strategically placed mesh panels provide the best possible ventilation and flat seams combined with the very high-quality wool ensures optimal comfort. Merino wool delivers effective insulation at low energy levels and evaporates excess moisture when activity levels rise. This regulatory effect on body temperature allows Training Wool to be used at all intensity levels, in both the summer and winter. Fabric & Care Do not use fabric softener. Wash using wool program. Wash with similar colors. Close all zips before washing. Wash before use.