Asics - Cyber LD (Spike Blue/Liquid Silver) - Women's: A premium spike designed for the serious distance runner, the SharkDuo(tm) outsole and an open mesh upper. The water release system in the outsole makes this an optimal steeplechase spike as well. One piece open mesh upper reduced weight with increased comfort, and allows for water release. SharkDuo(tm) outsole with fixed spikes provides optimal traction and helps reduce weight. SpEVA(R) midsole for superior responsiveness and durability. Perforated outsole allows water release for steeplechase events. Shoe weighs 5.2 (with pins).