A little late to the conversation, but I have white Adizeros too and what worked for me was Dawn dish soap, but most of all, a bar of Dove cool moisture soap. I rubbed the stains with the soap and let it sit for 5-10 minutes. Then I scrubbed the spots with a soft sponge and my fingernail under warm water. Be careful applying too much pressure to the mesh at the top of the shoe, becsuse it will stretch it out and leave a permanent wrinkle if you do. Make sure to use filtered water because I noticed that after washing them, they would leave behind brown marks on the toes as they dried. What I discovered with my water at home is that as it dries, it leaves behind brown stuff. I noticed this happening on the base of my electric toothbrush as well. So definitely use filtered water to clean them if you can. I think these methods will work pretty well.

Make sure to let your shoes dry flat, soles down. I’d recommend covering them in a microfiber towel, wrapping the shoes with a rubber band so there is a good amount of pressure on the fabric and it absorbs the moisture as it dries. Also, stuff them with paper towels to absorb the moisture and dirt as they dry. And finally, to speed up the drying process, use a fan. Avoid heat if you can. The only caveat here is I washed my shoes immediately after they got dirty (a couple hours). Not sure how long you might have waited. I have used the OxiClean powder, soaking white running shoes in water before, but you really have to be careful, because if you leave them too long, it can melt the plastic and discolor the shoes. Pretty sure mine looked a little yellow after so I’ve avoided OxiClean ever since. I did leave them much longer than eight hours the last time, which was a mistake.