The Klimatex PEKU women's running vest is designed for adverse conditions. The insulated part on the front provides high thermal comfort. The rest of the front and part of the back are made of highly elastic material with a brushed inner side. The back of the vest is made of extra breathable mesh for fast sweat ventilation. The two side zipper pockets are covered by a flap. Thin elasticised bands prevent heat loss. The zipper is lined with a flap that protects against wind and at the neck against scratches from the zipper. The vest contains reflective elements that increase visibility in bad weather and in the dark.