Avian-X is introducing foam-filled designs to select Topflight lines for indestructible decoys that will ride out the storm whether it's raining water or raining steel. Core-Loc™ Technology fills each decoy with marine-grade foam to 100% capacity. That means there's zero extra space for unwanted water. Fill 'em with shot, and the decoys will keep floating with lifelike movement on a weight-forward swim keel. Stability on the interior plus authentic looks and custom feather detail on the exterior deliver the kind of results you've come to expect from Avian-X.