Synthetic and leather upper. Updated eyestay design. Stitched-through and padded collar. These PUMA Smash 3.0 trainers are designed for comfort and style, featuring a combination of synthetic and leather materials for durability. The updated eyestay offers a secure fit, while the stitched-through and padded collar ensures all-day comfort. Perfect for casual wear, these trainers are a versatile addition to any wardrobe.