Alpinestars - Tech Air 3 SystemAlpinestars brings airbag technology to commuters and urban dwellers with the new over the jacket Tech Air 3. Previous airbags fit under the jacket and required space to operate when needed. Its over the jacket design goes on and off the rider easily, and is designed for folding and quick storage in a backpack, pannier, or under the seat of a scooter. The Alpinestars Tech Air 3 is vest like, with no sleeves, so it is limited to protecting the rider's