My oldest son is very slim. He needs pants with about a size 4 waist and size 6 length.
I fixed a few pairs of pants for him to make them longer. And they roll up to reveal either fleece or flannel on the inside. I love the look of lined pants for my boys.
This was a relatively simple alteration and I wanted to share it in case any readers needs to lengthen pants for their kids. Or themselves. Or husbands.