Puma Electrify Nitro 3 Running Shoes The perfect choice for young runners, the Electrify NITRO 3 running shoe offers a progressive design, delivering cushioning and reliability for your daily jog. In a redesign of the previous models, this dual midsole has more NITRO in the heel and durable PROFOAMLITE throughout the rest of the midsole. Breathable Mesh Upper The upper of the Puma Electrify Nitro Running Shoes have been constructed using a breathable, engineered mesh material to provide optimum breathability and comfort. The shoes use different patterns with perforations in areas of the foot that need more ventilation, this allows cool air to flow, whilst hot muggy air escapes. This provides a cooling sensation as you move and a drier, healthier environment for your feet to thrive. Increasing the structure and support of the shoes Puma has included Formstrip, which supports the foot and reduces in-shoe movement. The shoes also feature a TPU heel spoiler and a rolled colla