FROGG TOGGS Men's Signature Bull Frogg Waterproof Breathable Rain Pant

What are the waist and inseam dimensions for the Small and Medium sizes? I'm 5'8" and wondering what size to purchase.

What is the unboxed weight of these pants? The description gives the shipping weight as 1 pound but the item weight as 1.6 pounds!

How packable and lightweight are these? Would they work for backpacking? I'm not a super-light packer, but don't want something really heavy.

My pants size is 36 X 29. Based on comments I see, I am assuming that a large would fit and not be too big. Am I correct?