Saucony Endorphin Trainer Women's Shoe size:UK 6.5 preventing the socks from moving preventing the socks from moving or slipping off during activity Premium style exemplifying lightweight and better performance Bonded finishing on hem and sleeves to provide higher comfort Design is inspired by KIMONO and subtle overlapping pattern remains of Japanese traditional garment Reflective details on the garment for better visibility during night runs efficiency and a distinctive feel of the Endorphin franchise but engineered specifically for everyday training runs and high mileage weeks most efficient and most responsive incrediRUN foam combined with a structured bottom layer of our highly durable PWRRUN results in unmatched efficiency but in a stable and durable platform that is more forgiving