hubby just bought a jetforce pilot 11- he wanted the battery option- we realized it doesn't have a leg strap like my snowpulse bag does. Anyone have this bag? is it hiding somewhere I can't see it? If not- is it neccessary? I imagine that if the waist and chest straps are done up tight it's unlikely the bag would get ripped off of your body but I thought leg straps were standard issue on avalanche airbags?