Joe Rocket C.E. Back Protector An excellent upgrade for all Joe Rocket Jackets. Removable C.E. approved full back protector Impact absorbing flexible honeycomb shell Available for Men's and Women's Joe Rocket jackets For proper fit measure waist to shoulder Size Information Small (Women's) waist to shoulder length 13.8 - 17 overall size 11.5 x 15.25 Large (Men's) waist to shoulder length 16.5 - 18.9 overall size 13.5 x 18.5
I think it is unfortunate that this is not the default back protector that ships with all Joe Rocket jackets in the US, but given that it isn't, this is a worthwhile upgrade for anyone who has purchased a Joe Rocket jacket and wants a higher level of protection.
I have the Phoenix 5.0 jacket. Replacing the pad was easy to do and the new protector fit snugly in the mesh pocket.
The protector is definitely stiffer than the default pad that came with the jacket, so depending on how snug your jacket fits you may or may not notice it (my jacket is pretty snug but I got used to it after a couple of rides).