Alpinestars Tech Air 5 System Size:2XL the 509 Fudd Hat is

the 509 Fudd Hat is here to support you

Reflection at finger

New ergonomic TPU shift pad for enhanced durability in a critical area

Outseam: 20

ideal for older motorcycles that require a stiffer sidewall

Alpinestars Tech Air 5 System Size:2XL the 509 Fudd Hat isFEATURES Slim, self contained wearable airbag vest worn under a motorcycle jacket with stretch or two inches of room around the chest inside Vest comes with an active electronic system that features six integrated sensors (3 gyroscopes, 3 accelerometers) and a crash algorithm that leverages AI technology to monitor when to deploy the airbag in the event of a crash Upper body protection by covering the rider's shoulders, chest, ribs and back Bluetooth