Prudent layering pays off bigtime when bone chilling weather presents itself, and the Grundies™ base layer collection was designed to help you retain a vital resource: body heat. The Grundies™ Thermal ½ 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™ 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.