I need some help. Every time I ride, i have my phone on me for strava, and what not. The problem is that is gets too cold then shuts down.  I have tried the idea of putting a toe warmer on the back but that didn't help much.  What do you guys do with  your phones during the race?

chris van eerden

I always put my cell in a ziplock bag and then in my back jersey pocket.  Usually it stays warm since it is the first layer close to my back, yet the bag keeps the sweat off it.