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. Features 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 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. Features 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. AHAR outsole - Improves durability. Recycled Materials - At least 75% of the shoe’s main upper material is made with recycled materials to reduce waste and carbon emissions. Solution Dye Sockliner - The sockliner is produced with the solution dyeing process that reduces water usage by approximately 33% and carbon emissions by approximately 45% compared to the conventional dyeing technology. Reflective details help - Improve visibility in low-light settings.