Help prolong your battery life in the cold with the Burton Antifreeze insulated phone case with internal stash pocket. LOL? Hello? WTF? Maintain battery life on the hill with the Burton Antifreeze Phone Case, and avoid SMH moments when you miss the most important updates due to a frigid device. Offering a slim-pocket-friendly barrier against cold weather, it also includes an internal stash for cash, credit cards, and ID.