Replying to Anything else on the market like Helly Hansen's Life Pocket?

I am an avid skier, but I'm also a phone nerd, so I tend to care about the sometimes extreme temperatures my phone is in when I'm skiing in 10 degree weather for 4-8 hours. I just discovered Life Pocket on some of Helly Hansen's jackets.

Anybody else doing something like this right now? I'm sure it will be the standard at some point in the future, but for now I'm wondering if there are other options besides Helly Hansen.


Thanks!