What's on your plate? With a new 2-part plate, this racing shoe gives you the perfect toe off for mid distance, along with the lightest middle distance spike on the market.Overview?Event: Track & Field?Surface: Track?Upper Details: A single layer mesh supported by Flex Film makes the Ballista the lightest middle distance spike on the market.?Bottom Unit Details: The Ballista is our first spike to be engineered with multiple compounds to reduce weight and still provide rigidity underfoot.?Weight: 3.1 oz. | 88 g.