My daughter (8 years) lives in these shoes.  She keeps them in her backpack for school.  She loves that they are quick to get on and off , also light weight in her backpack.  I don't worry if she would have to go outside in the snow; her feet are still warm.  This is her fifth pair or crocs.  The only problem I have with them is she keeps out growing them!!!  For quick touch ups I used a clorox wipe.  For deep cleaning I put them right in the washer with a load of towels. (If I have her crocs in the load of towels I DO NOT add any bleach.)  I set them over the heat vent overnight and in the morning they are dry.  She has had several differnt colors and although she generaly hates anything pink - she likes these.  My only complaint with crocs is that there are no half sizes.  She is currently in a 1.5 - so I had to order her a 2.  They are a little big but I am in hopes she will still be able to wear them for at least part of next winter.