I love that these are light enough that they can be worn outside even when there's no snow on the ground. I also love the removable liner. I feel that removable liners help make it easier to actually clean the boot in the event it become excessively dirty. It's "fall" here in Michigan, and the day these came my son wanted to try them on and go outside to play in them. It was 37 degrees and I allowed him to. When he came in and I took the boots off of his feet, I could feel the heat from inside of the boot radiating out. I definitely believe these will hold up to their temperature rating and keep his feet nice and toasty come winter.
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