Hit-Air’s All New Original Lightweight is a “harness type” design airbag deployment, giving faster response time. Lightweight and comfortable, it’s easy to forget you’re wearing it. It is also quieter than previous models, keeping your horse happier too. The All New Original Lightweight (SV3) is the new upgraded Original Super Lightweight Air Vest with YKK Vislon zipper for easy opening and closing of the keybox cover. With the XS-S weighing less than 2 pounds, Hit-Air is the lightest harness air vest on the market.  Featuring the Hit-Air Coccyx protection air bag that opens and drops down upon activation. Internal padding has been included behind the keybox.