These are great pants for cold weather activities when you don't need heavy snow/ski pants but need thermal water repellent gear (not sure if they are waterproof to ski pants level). but my version worked fine in snow). I bought these for my son, having already bought the women's version a few weeks ago (intended for a winter visit to Iceland). Now he is very skinny, to get pants of any brand in the desired length, the waist is usually too big. I believe these measurements are accurate, so you're probably fine with following the size chart. Ideally these pants should have an internal adjustable drawstring waist, that many other brands of children's pants have these days. but this pants fits perfectly with the belt (there are loops for the belt). He is approximately 5"1, weighs 65 pounds and has a 21.5" waist. I bought him a medium 10-12 and we are happy with it.
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