Our patented Eqwader™ technology (patent #7,318,239) revolutionized waterfowl clothing and has been a core piece of the Drake Waterfowl™ brand since day one. Just like the Earth's equator is the dividing line between two distinct temperate zones, we noticed a similar dividing line on the body when you are wearing chest waders: cold, hostile conditions above the waders, and warm, humid conditions underneath the waders.