Stretching splint at rest. Indicated for: athletes with fasciitis, Achilles tendinopathies, overload of the calf muscles or soleus. Prevents the appearance of muscle cramps in the legs. The new exclusive anatomical shape of this splint is specially designed thinking about avoiding the typical discomfort of athletes. Keeps the foot and Achilles heel muscles stretched, helping to improve or prevent the typical foot and heel discomfort in athletes. The hardness of the insole material multiplies its effectiveness. This insole is lined avoiding chafing or other annoyances.