I really like these boots for my kids. 7 year old son has red and 9 year old daughter has pink. They hold up really well. Her feet are actually sweaty hot when she comes in from hours in the snow. His are slightly chilled but I think that is just him - they are honestly the first boot he's had that he hasn't complained about his feet being cold - including a pair of UGGS snow boots I had found him last year. They hold up really well. I've gotten two seasons out of my daughter's and they look brand new. I don't know if you can wear them all day comfortably because my guys don't make it much past 2-3 hours in the snow. I don't know about the arch support, they just don't complain about these ever which is a big step!