Default [Q] Best options for slippery phone / pouch user?

I like the G3, but the back panel is just way too slick for my hands. It seems like the official Slim Guard case might be the best option, but can't find it for sale in the USA. I use a pouch with my credit cards/cash so a bulky case isn't going to work.

Are there back replacement panels for sale that aren't as slick of a texture? Is the white model just as slippery as the black? I thought I recall from a review the white had a different feel to the back.

Coming from the Moto X and Note 3 I feel like it is only a matter of time until this phone slips out of my hands....whatever options exist I'm willing to consider.