Under Armour Speedform Gemini Vent Women's Running ShoesDeveloped with the innovative UA SpeedForm construction which moulds to the shape of the foot for a precision fit, eliminating all distractions, the Speedform Gemini Vent Running shoes should be a must-have when considering running shoes.Engineered Mesh UpperThe upper of the Speedform Gemini Vent isis constructed from an engineered mesh. The mesh allows air to permeate the entire upper providing a constant supply of fresh, cool air, while simultaneously pushing out hot, muggy air that resides during high-intense activity. In addition, a ventilated midfoot panel increases breathability and enhances ventilation properties but also links in the with lacing system to provide a well-formed and snug fit. This construction allows you to get a better and tighter fit while staying lightweight and comfortable throughout even the longest of runs and prevents slipping from occurring within the shoes. An internal heel counter also helps with the slipping as it locks the heel in place to prevent movement. This construction provides seamless, lightweight support and structure to the shoes, while an embedded sockliner offers added cushioning, support and seamless comfort.