Yeah, they're explosion proof, but are they puncture resistant? Also does it weigh less than 2 pounds per tube?

Today I cheated death when walking in a mall parking lot on the way to get some christmas shopping done. Some whacko lady in this clapped out green honda accord deciding to cut the turn into that row hopped the curb at a speed that should not be done in a parking lot. Missed me by a little more than a foot.