Skin for xperia z3 dual to improve grip? topic

Hi guys

I was using this phone naked with two glass screen protectors from nilkin and after three months both had cracked.

Now i bought another thicker glass protector and a case. Problem is i'm still not a fan of the case, as thin as it is.

So just wondering if anyone use like skins, like vinyl wraps? Do you guys think that can increase grip and minimise the bulk?

Any recommendations for brands? In particular I have the dual, and not just the normal one.. Really cuts down the amount of choices I have..

Thanks