Gym shoes are for the gym. Running shoes are for the street. Siren sport is for women who want to stretch their limits off the beaten track with a waterproof cross-trainer. Uppers of genuine full grain and synthetic leather with ample breathable mesh ventilation. Waterproof Gore-Tex lining keeps your feet dry. Great support, great Merrell fit. Vibram® Siren™ sole adds stability and traction you need for off-road running, speed hiking or trail biking. Q-Form® triple-density molded footframe promotes healthy alignment for a woman’s stride. Merrell model J13056.
Increased input-response makes it easier for the musculature to react adequately. After ground contact there is a rolling movement, starting from a negative heel position (1). This creates a pre-stretch of the calf muscles. The straightening of the body, the balancing on the mid-foot (2) and the pull-through of the step to the back (3) initiates a rotation, which follows through the whole body. This results in an active and natural posture and gait.