My son is 13 years old and I don't think hes 80 pounds, but he keeps getting taller.  I cant buy pants for him without an adjustable waist,  which this suit has. This suit fit him perfectly.  My husband asked me where I got it and  if I had taken my son to get fitted for it.  The pants are not lined but the jacket and the vest is lined. We bought a size 14. Highly recommend. Also the company was very accommodating. They made sure the suit came  in two days. I  hit the buy now with one click option and didn't realize that I didn't choose  two day shipping. I emailed the company and they made sure  it was delivered in a day or two. Very accommodating!!!