1917, 191924: Thick leather straps had more of a helmet-like shape and rigid earflaps that had holes to allow the player to hear. It was about this time that suspension appeared. Early suspension consisted of two wide cotton straps arranged in a cross-pattern and anchored to four points inside the shell. This cradled the head away from the shell and absorbed and distributed impact better. It also allowed for ventilation. Some players chose to play with the earflaps up. (Note: WWI, no games in 1918)