Design: Single piece knit allows for a sock-like softness, flexibility, and stretch Utilizes Saysh® FemiformityFIT Technology (a dynamic fit specifically for women) The last is built for a woman’s foot, featuring a wider forefoot and narrower heel Toe area allows for anatomical movement and toe-off motion Internal web-like structure allows for great midfoot cinch, contouring to your medial arch Discrete reflective details on eyestay islands and heel brand logo In-Shoe Comfort: Snug heel fit with internal foam pods for an ideal fit around the Achilles and ankle Super critical foam with 45-degree hardness creates a soft sensation with great rebound energy Durability & Traction: Durable performance outsole with anatomical flex points Additional Details: Weight: 10.5 oz