Just gonna give a shoutout to rossignol. I have a pair of 07 Scratch sprayers, and I've ridden them hard on rails, ice, urban, rocks and other random shit. The majority of the time that I rode them it was below 0°F, and I used to sesh boxes in my front yard at -20°F regularly. PVC rails explode at -10°F, so I'm pretty stoked my bases didn't do the same. I don't have a single edge crack, and i don't even have a fully fledged core shot. I have some deep scratches, but considering Fairbanks only gets like 12 inches of snow a year... I'd say they are bulletproof. I've also taken them on plenty of trips, so they've been banged up by luggage handlers, and shoved into the back of my honda and had ski bags thrown on top of them.
TL:DR - Rossi Scratches are made out of the same shit as this phone.