This is a nice Billabong web belt in military green.  My 14 year old son who is 5'8 and 160 lbs really likes it.

This is one size fits all and easy to use.

But, the belt is super long. I think this could fit a size 36 waist easy. If you are larger size this will still fit you.

Overall, great belt that will fit even larger kids because it's so long! Hope that was helpful :)