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 play in style and be sure to teach your puppy plenty of new tricks. The jockstrap is open at the back to showcase your puppy's backside. The S/M neoprene waist size is suitable for a waist measurement of 28 to 32 inches.