Asics Magic Speed 4 Womens Running Shoes - Red Outlet We tested hundreds of prototypes

We tested hundreds of prototypes

even in remote locations

SUPERIOR BANDOptical heart rate sensors work best when they're held securely against the skin

triple-layer foam

At the same time the TRAILTALON SPEED benefits from superior cushioning and bounce

Asics Magic Speed 4 Womens Running Shoes - Red Outlet We tested hundreds of prototypesThe MAGIC SPEED 4 shoe is designed to support your racing goals. It is ideal as a training shoe, for tempo runs and a fast shoe that is versatile for all distances on race day. A sculpted carbon plate is designed to improve stability helping create a smoother and more propulsive experience during the toe off phase of your stride. Additionally, this shoe is updated with FF TURBO cushioning, which helps you experience a more energetic toe off during