They don?t cut into my foot are all. It was easy to turn a rarely used bike into a staionary trainer with this. I love the container they come in, the clasps are strong and hold very well. I literally never write negative reviews but this thing just doesn?t do the job it?s intended to do. Would have preferred a slightly tighter fit but considering 95% of the time i will just use these for walking in the house/garden i see no real problem for me. Three words about these jammies: comfy, comfy, comfy! I agree with other reviewers that these are close to being like water shoes. Sizing-wise: i was very unsure what size to go with but ended up choosing the size 40. It looked and felt cheap, the logo wasnt right, the plug wasnt right, and the way that the wiring was assembled made the earbuds almost unusable. I wear a size 10 Nike sneaker but needed an 11 in these slippers.