The MAGNIFY NITRO has the thickest piece of Nitro in the entire line. Simply put, you get MORE OF THE GOOD STUFF! Soft and comfortable, this model is ideal for long comfort. A premium engineered mesh upper combines with a 3D molded heel to hug your foot in all the right places while remaining breathable. Even with the enhanced amount of cushioning from the premium NITRO foam, this shoe remains lightweight, including a PROFOAMLITE layer on bottom. PUMAGRIP gives good grip multiple surfaces. The MAGNIFY NITRO is the perfect choice for your next run of any distance where comfort is the top priority. Specifications:Midsole: - Nitroadvanced technology providing superior responsiveness and cushioning in a lightweight package- Profoamlite Lightweight, high-rebound EVA that provides instant cushioning and durability- Heel spoiler: Visibility from reflectivity, and stability through proprioception thanks to the heel TPU pieceOutsole:- Pumagrip rubber: Durable rubber compound that provides multi-surface traction- Rubber placement: A generous amount of rubber gives durability for the long miles, and a central decoupling line that works for any strideUpper- Fit & material: Uses the linear last that was developed based on biomechanical research, executed on a premium engineered mesh upper. - Heel fit: A rolled collar with cats´ tongue materials, plenty of cushion keeps the foot locked down on every run.