I have a set of Lewis boots size small. Don't fit any of my dogs so if someone would like them let me know. I have successfully used Lewis boots in the desert with GSPs before and they are the most common boot used in our Pointing Dog Club. Learning to tape them on so the dog doesn't throw them is the trick. Use some vet wrap under the boot with some adhesive tape over that (sticky side out) to adhere to the inside of the boot. Then over the outside of the boot some duct tape makes them pretty secure. I do like the inner tube suggestion, have to try that on the French Britany which has feet to small for Lewis boots. Leather doesn't seem to help with Cholla spines which is the real pain for the dogs. The Lewis boots work pretty well with the cholla, seems stiff enough to turn the spines away most of the time.
