OK, the Nokia X Burton Insulator Case is just another case at heart, but the collaboration does get some credit for decent build quality for this generic winter phone case and for making the rather good point that keeping your smartphone warm can seriously help battery life when conditions get very cold. Video and links below.

Nokia went to New Zealand during Burton High Fives contest to find out what snowboarders think about the Nokia x Burton Insulator Case.

From the main product page:

Thermal protection
With 3M™ Thinsulate™ insulation, a Nokia X Burton Insulator Case will protect your phone from the cold and snow, as well as keep your battery alive for longer.

Battery lifeline
Wrap your phone in cosy, stylish layers inspired by Burton’s 2012/13 collection and you can extend its battery life by up to 50%* in cold or sub-zero temperatures.

Close at hand
Each case is tailored for protection with a carefully crafted zip finish and leash that lets you keep your phone, cards, cash and keys attached when out on the slopes.

50%, eh? That's quite a claim, but credit where credit's due for bringing this environmental effect to more people's attention. Batteries are fragile beasts at times, you know, best keep them charged and keep them warm!