Hip Doggie harness vest is easy to use (doesn’t go over the head), has reflective piping around the entire harness for extra safety measures and is made of breathable, quick-drying sport mesh fabric of good quality. Fits16-18” girth/chest. Material Content: Polyester Machine washable - lay flat to dry Features: Easy to use step-in design with Velcro closure Quick release clasp and an adjustable chest strap for flexibility and a better fit Breathable woven fabric Reflective piping for nighttime safety Harness vest is much more comfortable for your baby than a collar as it pulls on their chest & not on their neck