Design: Engineered jacquard mesh upper for a lightweight, breathable fit to keep you cool and comfortable Reflective details designed to improve visibility in low-light conditions Heel and tongue pull tabs for ease of entry Enhanced visibility and safety for runners in low-light conditions In-Shoe Comfort: Knit tongue and collar help provide a soft and supportive feel PureGEL(TM) technology helps provides lightweight cushioning and softer landings Added 2mm of enhanced FF BLAST(TM) PLUS ECO cushioning technology, made with approximately 24% bio-based content, creates a lighter and softer cushioning experience with less of an impact on the environment Durability & Traction: HYBRID ASICSGRIP(TM) outsole combines ASICSGRIP(TM) and AHARPLUS(TM) rubber to provide traction, softness, and durability Additional Details: Weight: 10.7 oz / 305g (based on a US size 9)