I purchased these as a gift for my 18 yo son, large boy, not big (5'-10", 190 lb).

He suffers from teenager butt crack syndrome, so I thought this might offer a new approach to a kid who hates belts.  I has worked, he really likes suspenders, they secure the pants, are comfortable, and don't squeeze the waist.  So all of the typical things we all knew abouts susbenders, but teenagers don't know.

The clasps can be slightly tricky to get them to lock down, a little effort is required - other than that, I would say the quality is good.  Comfort is good, and they seem to stay put.  For the price, that works.