★Automatic trigger: The inflatable air vest automatically unfolds when the key ball is released when you are separated from the bike or horse. ★Reuse: The equestrian protective gear vest, after triggering, can be repacked if it doesn't suffer any tears, just need a new cartridge. ★Size: Powersports Protective VESTSS-3XL, please check the size details carefully and choose the size that suits you more, or if you don't know how to determine the size, you can consult us, we will provide you with reference suggestions ★The motorcycle airbag vest is suitable for: urban commuting, high-speed driving, leisure mountain running, long-distance motorcycle travel, cross-country crossing, all can wear airbag suits to provide guarantee for driving safety! ★Service: If you encounter any use problems, please send me an email, change the size, return the goods is free, I will reply to your questions within 12 hours