[For all weather track only; For use with 328.3 - 148.2 ft (100 - 400 m); GEO PLATE Type-SL (SPRINT LONG PLATE): Lightweight and highly flexible 1-piece plate based on data shower theory. Semi-round Sole: Lightweight sole that wont wobble. Sprint Last: A sprint last for a tight fit that makes it easy to tilt forward. BIOLOCK: Belt construction for improved fit and support. Shoe bag included.