Brenthaven Pro 15/17 V.S. Duo 15"? Difference? Better?

[zimtheinvader]

Hi,
Does anyone know the difference between these two Brenthaven cases? I am probably getting a new 15" Macbook Pro, and I love these cases, but which is better? The Duo 15" looks newer, but the 15/17 looks nice too, can anyone point me in the right direction? I really can't tell the difference....

http://www.brenthaven.com/catalog-apple-pro-15-17.html

http://www.brenthaven.com/catalog-duo-15.html#

They look the same!!!!! I just want to protect my beloved MBP.