I was looking for a post-neuter alternative to a cone for my English cocker spaniel Linus (he weighs 25 pounds and I used a size 2, for reference). As he is a fairly long-bodied and weirdly flexible dog, I had worried he might devise some contortion to bypass the collar. He did once, but that was user error as my husband put it on wrong with the opening in the front (it needs to be in the back); once corrected, it was fine. After 5 days, Linus hasn’t minded wearing it at all; in fact, I think heSee full review