Under Armour UA Micro G Pulse TR Shoe - Women's Synthetic Upper: Light weight mesh for enhanced breathability Structured synthetic overlays provide support in areas of stress and flexion Midsole: Full length Micro G midsole allows the athlete to get lighter and lower to the ground which provides better lateral stability Footbed: Full length 4D Foam sock liner conforms to your foot's exact shape Eliminating internal slipping for the ultimate in locked-in comfort