A quality bridle should have the same characteristics:
1. How is the sizing? Will you have to have individual parts shortened or replaced?
2. Look at the stitching. It should be small and uniform (at least 22 stitches per inch).
3. Check the buckles and holes. The buckles should be sewn in tight. The buckle holes should also be small and uniform.
4. Check padding.
5. Check the keepers. Are they the right size for the strap? Will they do their job of keeping everything tidy or will they slide down all the time?