We initally tried a premade brace. It didn't work with our pup due to her anatomy (10 y.o. black lab post surgery for torn Achilles tendon). The custom made brace has been worth every penny, our pup is getting around better with the brace. Time will tell if she'll heal properly, but we're hopeful with what we've seen so far. Having the extra support the brace provides gives us peace of mind. We've decided to get another for extra support on her other leg as the tendon is stretching there as well. It's a solid, well made product with great customer service.