Prudent layering pays off bigtime when bone chilling weather presents itself, and the Grundies(TM) base layer collection was designed to help you retain a vital resource: body heat. The Grundies(TM) Thermal A 1/2 Zip offers a warmth-when-wet thermal layer option that is a crucial part of any fisherman&';s layering system in cold, wet weather. This heavy-weight stretch fleece offers HeiQ(TM) anti-odor properties to keep off the stink when you&';re working hard, a deep center-front zipper for maximum ventilation when needed, and a vertical zip chest storage pocket for easy access of your personal items.