Also large enough to also hold other small items, it's made from military green nylon and has a taped zip closure to make sure all nasty weather stays out. It's finished with a rope-like strap, which can be worn over the neck or across the body for a utilitarian look.
Is it the most needed thing? Of course not. But for those who frequently find themselves amongst the elements and like the idea of an alternative case/bag for your phone, it's a very interesting move. Pick it up here.