Send your partner to obedience school with the Ouch! Puppy Play product line. Designed for a comfortable fit from high-quality neoprene, your little pet will learn to obey your commands in no time. Enjoy role-playing with style and be sure to teach your "puppy" many new tricks. The jockstrap is open in the back to showcase your pet's backside. The S/M size neoprene waistband fits waist sizes from 28 to 32 inches.