Gooby Comfort X Step in Lite Harness

Medium, but fits like a small. ESCAPE FREE - Size the product by adjusting the side rubber tab, ensuring a snug, comfortable chest fit. FLEXIBLE BODY FRAME - Breathable mesh to keep them cool and flexible body frame for the perfect fit. CHOKE FREE DESIGN - Deep V-Neck puts zero pressure on the neck and redistributes pulling force to the chest and shoulders.