Eastbay Aerial Assault Jersey - Boys' Grade School Air it out in and day out from the Eastbay Aerial Assault Jersey. This football practice jersey uses 100% polyester porthole mesh for extreme breathability, allowing the troops to go all-out as you perfect the game plan. The rib knit v-neck gives a classic look while the belt line length gives full coverage. Cut to accept the additional room of shoulder pads, this jersey is ready to get you from good to great. Imported.