Men's 25.5 cm Following the previous model, this shoe features ASICS' lightest midsole foam material, "FF BLAST TURBO," which offers the most rebound, with a 4% increase in volume. The carbon plate shape has been changed from the previous model, now featuring a flat shape and placed in the upper part of the midsole. This has been improved to allow for greater rebound from the foam material by compressing the foam material from the entire plate with greater force. Popular Model/Series: METASPEED SKY+