This is a listing for one reproduction German WWII helmet liner in a size 59 that will fit a size 66 helmet shell. The way you find the shell size is to look on the inside skirt of the helmet where the left ear is when wearing it or look at the rear back of the flared skirt. There you will find a set of two digits after a set of one to three letters that indicates the shell size as above. If you need additional help please write and I will assist you. The liners I sell are well made with all the features of the originals. It has size markings and maker mark stamps on the outer band. It is very faithfully reproduced and you will surely be happy with the workmanship. It is only $9.50 to ship this liner anywhere in the US, Canada, Australia, NZ, Asia and most places outside of Europe. Postage within the Europe is $7.00. No extra postage will be charged if you buy a chinstrap and or helmet rivets when ordered with the liner *** The picture showing the size stamp is illustrative and you will get a size 59 when ordering this item.