Set of 3 suspension liner, 1 size regular, 1 size XL, 1 size XL incomplete,all in used but good condition the suspension liner with fitting pads is a very universal type of liner, it is very adjustable which is important since SPH helmet shells come in 2 sizes- Regular or Extra Large, the liner is also popular because it allows air to flow over the wearer’s head, providing comfort this style of liner is found in SPH-4 and SPH-3B flight helmets, Please note that all our items are pure collector items or display items. The items are not tested for real use and have no aeronautical exams or clearances. Use is at your own risk !