Rubber sole Jacquard mesh upper: Provides good comfort and support while keeping feet cool. Heel Stabilizer: Helps support the foot and create a more balanced stride. Gusseted tongue wing fit system: Improves the midfoot fit and reduces tongue sliding. FF BLAST PLUS cushioning: Provides lightweight impact absorption and a responsive rebound. Trampoline-inspired outsole design: Provides a more responsive bounce back. The GEL-SONOMA 15-50 sneaker is rooted in the concept of outdoor exploration. This style harnesses inspiration from the 15-50 cross-country spike's upper. It was originally designed for competitive runners racing on a wide range of terrain. Now, it's modified for maneuvering on city streets and mountain trails. Meanwhile, the tooling uses components from the first two GEL-SONOMA trail shoes. From everyday foot traffic to hiking rocky hillsides, these features create advanced cushioning and traction in various surroundings.