Built with an integrated airbag, the Dainese Smart Jacket Motorbike Airbag System adds an extra layer of safety when you’re riding. Because it uses Dainese D-air airbag technology, it can assess complex situations and activate when necessary. One of the great features of this motorcycle airbag is that it can fit both under and over clothing. You can easily zip up a jacket over it, or you can wear it on top of a shirt. It’s water resistant, so you don’t have to worry about it coming into contact with a bit of rain. Furthermore, this vest airbag is a one-size-fits-all device. It doesn’t matter how bulky you or your clothing are—it’ll fit. Fold it up for storage and don’t worry about recharging the battery until you’ve used it for 26 hours.