two jackets or just one ?

[Pumpkin the robot]

I also use a gore oxygen jacket, one of the best peices of kit I have bought for cycling. Only down side is that it does not have any pockets. Sizing can be a little tight, I got a large and I am glad I have lost a bit of weight since buying it last year as the snug fit is spot now spot on and I am a medium in most things.

 

[Pedrosanchezo]

I did end up getting the Castelli pocket liner and can confirm it is a seriously good bit of kit.

Been out in several constantly wet rides and top half stayed dry and warm. Makes such a difference to your ride when your top half stays dry.