The HFS II continues the legacy of one of Xero Shoe's most popular running shoes. The upper is soft and expansive, allowing for those with wide feet to utilize their whole foot. The sole stack reaches 9mm (1/3rd inch), leaving a relative amount of cushion but still allowing for ground sensation to reach the foot. Supremely lightweight, each step will feel light and effortless, and their sleek style helps them blend with workout and casual attire alike.