Here is another pepper spray that you can easily wear around your wrist and use quickly when in trouble. The Little Viper Pepper Spray Bracelet 2.0 uses 10% oleoresin capsicum and can cause coughing and intense burning sensation from just 3 feet. This pepper spray bracelet has a water resistant silicone band.
The Little Viper Pepper Spray Bracelet has interchangeable bands and replaceable cartridges. You can find out more about it here.