I looked into Feelgoodz because my I wanted to replace my broken pair. I was attracted to the material as I am trying to cut out plastics and people have said it molds to the foot better and I live in flip flops. I bought a brown pair that said 10-11 B(M) in the Kona. I hover around a 9.5 but have wider feet so it seemed OK. While I was waiting for those to arrive, I saw these 10-11 C/D in Phoebe, according to the seller C/D is wider, so I ordered those as well to see how they compare.

Both pairs just said W10-11 on the tag but the sizing is way off. As you can see in the photos, the Phoebe pair was smaller all around, it didn't seem proportionally any wider than the Kona pair. Its hard to say what where the mistake was made. I don't know if it was labeling, manufacturing or oversight on the seller. So for now I'll leave at 3 stars because its a comfy pair of flip flops but the sizing is crap.