We buy a good deal of our stuff online via amazon and other places. (always looking for the best deal, you know). Clothes are hit and miss, as we have kids and sizing seems to change from manufacturer to manufacturer. Dickies is a good brand of pants (thick and able to handle the wear and tear of a kid). Our kids are at a public school that has a dress code, so it's khaki or navy bottoms for us.

We ordered these pants twice for our 60lb 7-year-old. First attempt was a 7 slim. The waist was huge, and the length would have involved hem tape on our end. But not getting discouraged, we decided, ok, these definitely run a size big for the kid's age. So we ordered 6-sliim. I'd love to tell you that was the magic number, one size down, but the seller sent us 5-regulars instead. Well, I cap the returns at returning the same product twice, so we gave up and didn't try the 6-slims.

I think the waste is tricky, length does probably run a bit long for the age. My advice is start with one size down first, if you consider your kid at their age roughly "average" size. These pants seemed built for a little "thicker" kid in the waste.

Hope this helps you all as you try to order online. I know sizing is always tough.