Although they are a bit big at the knee you hardly notice (no gaping whatsoever). For not being custom, these give you a great fit. I still can't give an official rating on durability but so far, no issues at all.
If you are in the market for half chaps give them a try. Huntley Equestrian has other products so go check them out! They are giving 10% off for using promo code Facebook at check out. You can also purchase them on Amazon.