You can see the dirty spot in one of the images in the heel area. The shoes made specifically for those events.
adidas Throwstar Shotput Discus Shoes New W/ Cosmetic Defect SZ Men 12.5 WMNS 14
adidas Throwstar Shotput Discus Shoes New W/ Cosmetic Defect US Men SIZE 14
adidas Throwstar Shotput Discus Shoes New W/ Cosmetic Defect SZ Men 10.5 WMNS 12
Nike Zoom Rival SD 2 Shotput Discus Shoes Used Customer Return SZ US Mens 9.5
Nike Zoom Rival SD 2 Shotput Discus Shoes Customer Return SZ US Men 10;Wmns 11.5
