My son is 8, and we have gone that whole time with either pants that are too short or the length is fine but the waist is huge. I found these pants, and THEY FIT. Waist is perfect and length is perfect. Measurements are: waist - 21"; hip - 25"; and inseam - 24". We chose medium length C. Great quality pants. And did I say it already? THEY FIT.
My son loves their knit jogger, sweat pants, and jeans. They are durable and last for years on the same kid due to the flexible length!
Good length and overall fit - slightly loose at waist/butt since my child was on border of M to L but I wanted to be long enough so I went for L. That said they don't actually fall off, but if my child has been wearing them and being active for a few hours they do slip down from waist to rest at his hips.
Finally pair that fits
My grandson loves the joggers. For the most part they fit him and he doesn't have to worry about them falling down. I wish they could have been a little bigger in the leg.
I don't know his weight or height .