Gola Calera Mens Fitness Sneakers Synthetic A fitness trainer with a lighweight construction that is designed to enhance all levels of your workout Breathable mesh upper for maximum comfort and ventilation with synthetic seamless overlays for comfort and durability Strategically placed flex grooves in the sole unit aids natural foot movement Padded collar, padded tongue and removable moulded cushioned insole all offer comfort TPR inserts in the non-marking sole unit delivers grip and traction