The ECH has a 4-point chinstrap/napestrap head retention system. The Antarctic fur seal is also known to occasionally kill chinstrap penguins. The CG634 has a 4-point chinstrap with flip down adjustment pieces. Third pattern, came with the three-point webbing chinstrap. These three species most often prey on eggs and young chinstrap penguins. The chinstrap penguin is primarily threatened by climate change. The main predator of the chinstrap penguin at sea is the leopard seal ("Hydrurga leptonyx"). It is held in place by an inner headband and a chinstrap. It is black with a crimson underside separated by a thin chinstrap. It is held in place by an inner headband ("baat") and a chinstrap. The global population of the chinstrap penguins is estimated to be at least eight million. Soon, it is the time of year when all the chinstrap penguins couple up. On navy caps, the peak and chinstrap of the service cap are always black. Fedoras can be equipped with a chinstrap, but this is rare. This kepi had no chinstrap ("jugulaire").