I've never been comfortable giving my dogs rawhide treats. Some dogs have a hard time digesting rawhide, and I didn't want to take the chance. However, I wanted a long lasting treat--something to keep the dogs busy for hours. I started looking for alternative treats and that is when I found Pork Chomps. The Pork Chomp brand makes their treats out of pig skin instead of rawhide. An article in Study of Animal Science goes into the detailed breakdown of pork skin versus rawhide. The article can be found here.
Pork Chomps come in a variety of sizes and flavors. They have several different types of treats so it's easy to find the right one for your dog. The treats aren't messy and dogs can't get enough. These treats can be found in most pet stores.