I'm deciding between the ixon sismic textile jacket and the alpinestars stunt 2 leather jacket. I can get the ixon for $270 and the alpine for $500. I don't really want to spend $500 but am willing to be swayed if it offers better protection? How do these two jackets compare as far as protection, ie if i went for a slide... I am leaning towards the ixon due to it being more waterproof, cooler in the heat and also cheaper.