Brand New Drake Size Small Waterfowl Vest. The Drake Waterfowl® Systems MST™ Layering Vest is great for wearing as a layer for warmth or by itself for a warm, free moving alternative. This windproof, water resistant fleece vest features several of Drake's innovative Instinctive Features™ intelligent design options. Vest comes with two zippered slash pockets, a Magnattech™ pocket on the chest, and zippered security pocket. Machine wash. Imported. Great as a layer piece or warm, stand-alone vest Windproof and water resistant Warm, breathable fleece vest Comes with Drake's Instinctive Features Two zippered slash pockets Magnattech™ pocket on the chest Zippered security pocket Manufacturer style #: DW160.