Washable Merino wool is paired with a soft lightweight stretch knit, providing core warmth and excellent thermal regulation 48% Merino wool / 48% nylon / 4% spandex Breathable, quick drying, and moisture wicking Merino wool fibers can absorb large quantities of water vapor helping to prevent the buildup of sweat, bacteria, and unpleasant smells; maintains insulation when wet Flat-seam construction stretches and lays smooth for layering Quarter-zip neck provides excellent temperature regulation Hip length with riders cut hem Kerrits “Wild Horses” print adds equestrian flair