Okay, Shocktube? I love love love the Split Jacket. And, I decided to give the shock tube a try. Very cool BUT! No clear lense option? No any replacement lense option really, Um... Prizm Deep or any of the good lenses not really an option "Good thing it has a key to change the lense"- sarcasm. No frame gaskets. basically this is a novelty. Novelty items don't belong on Si. at least "functional" ones.. Well, You know what I mean... Did I miss something here?