The ASICS Women's Lite-Show 1/2 Zip is a high-visibility base layer top for women's running. It features Lite-Show reflective details that enhance visibility in low-light conditions. The 1/2 zip design allows for easy ventilation and temperature control. The thumbholes keep the sleeves in place and provide extra coverage for your hands. This base layer top is highly rated and a great choice for women who prioritize safety during their runs.