Excellent Condition! For Horseback Riding & Motorcycle Use, MUGEN DENKO hit-air Airbag Vest, Black, Size M Price is not negotiable. This is a MUGEN DENKO hit-air airbag vest. Retail price: Approximately 52,000 yen. Used approximately 40 times since purchase. Purchased last April. This is a USED item, so please refrain from purchasing if you are concerned about minor details. There is a name written on the inside. There are many hit-air protector vests for sale, but after a few years (approximately 4-5 years), the airbag tube (image 4) deteriorates and may not deploy in an emergency. This can lead to serious injury, so we recommend a newer model. The airbag tube should be replaced about 4 years after the initial purchase at the hit-air manufacturer's headquarters in Nagoya or at the place of purchase. For safety reasons, we recommend replacing the airbag tube of older hit-air protector vests. This is different from the gas cylinder.