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 in style and make sure to teach your puppy lots of new tricks. The jockstrap is open in the back to show off your puppies back side. The neoprene harness size S/M is fitting for a waist between 28 and 32 Inches.