The Gel-Nimbus 28 is 20g lighter than its predecessor, offering cushioning for long-distance running. The midsole incorporates FF BLAST™ PLUS cushioning and Pure GEL® technology for a lightweight feel. The upper is crafted from engineered knit material for a secure fit. engineered knit upper Pure GEL® technology FF BLAST™ PLUS cushioning Ortho Lite™ X-55 sockliner reflective details HYBRID ASICSGRIP™ outsole