The  NOVABLAST 4 picks-up where the third iteration left-off, improving on all areas after feedback from runners and intense research on ASICS' behalf.

A newly developed upper uses engineered mesh to create a one-piece, lightweight, and highly breathable construction with advanced comfort. A new wing designed tongue with added stretch and perforated material helps to improve comfort further and increase breathability.

The faceted midsole—inspired by organic structures—employs ASICS' new FF BLAST Eco foam for cloud-like comfort made from 24% bio-based content. The lightweight, responsive foam's geometric shaping and outsole design delivers a bouncy and energetic ride. ASICS high abrasion resistant rubber is updated with a lower density in a compound named AHAR™ Lo.