Just in time for Polar Bear Club season is the H2O Audio waterproof second generation nano iPod case. It is slim, small, and allows you to dive into the Artic without your iPod getting all water-y. This case is one of the more expensive at $80 and includes an arm-band. The optional waterproof headphones sell for an additional $40. This overly expensive and overly cool iPod case is available nationwide at Fry's, Apple Stores and online.