I tried to cut it hoping that it would fit but that didnt work well, now they are just held in place by tape, which I have to reapply occasionally. While they work. Very annoying and dangerous. Its just not very precise. I have somewhat wide feet, and these work great in their "normal" width. The material it?s made of especially the lid is really flimsy it?s like the plastic packaging that you throw away. little feet. And, over all sound output was MUCH worse than my old Visio. I have had these in my cart forever. My 22 month old daughter loves these flip flops and is able to take them on and off herself.