Back in 2008, some Nike Dunk Lows known as the Gyrizo ACG were made for the BMXers during the Olympic events. Designed with a stiffer sole and clip in technology allowing efficient pedaling, but for everyday use the clip is removable. For those that are into sneakers, the Nike Dunk Low Gyrizo ACG uses a speckled sole that are also seen on past Nike ACG. This pair also features a strap across the front, which has never been used on low versions. Since this pair is a sample, you will not be able to purchase in stores.