The slippers are suitable for the first steps and little feet. They start at the feet perfectly and easily. The elastic to hold the shoes does not hurt. At the level of resistance, this is 3 months and the state is correct (a little damaged but to use, I think it is normal). My son was able to find his balance more easily than the slippers with soles. I took 2 pairs with 2 different sizes and I do not regret. As the slippers are soft, I continue to use them on multiple sizes of feet. (Eg shoes Dotty Fish: size 12-18 months, shoe size: 20, 21 and 22).