The Asics Novablast 4 is the latest edition of the popular running shoe, known for its versatility since its first release. This version features a knitted, sock-like upper for a comfortable fit, similar to the Nimbus 25. The midsole is made of FF Blast+ ECO, which consists of 20% recycled bio-based content. The 8mm heel drop provides a bouncy, trampoline-inspired effect. The outsole is made with AHAR rubber for sufficient grip on roads in various weather conditions.