EUC The Kari Traa Rose Half-Zip is a soft and warm merino base layer with a classy, feminine, Nordic-inspired floral design and a slim, sporty silhouette. Combining ethically sourced wool and 4-way stretch, this midweight layer offers next-to-skin comfort, natural odor-resistance, and breathability. The zip collar allows increased ventilation for personalized temperature control. 15.5 inches pit to pit . 23 inches in length small hole on side as pictured above