I am 5'10" with a 27-28 inch waist and wiegh about 135 pounds. I ordered some underjams online last year and I liked them, but the sides ripped within 15 minutes on some of them.
Was this pack defective or were the sides really that bad?
The problem seemed to be all the little holes in the elastomer material which leads to stress concentrations and eventual failure.
Have they made any changes to the sides in the last 2 years?