Minifig Neckwear Armor Angular, High Back Collar and 2 Studs on Back

Reference

35225

Minifig Neckwear Armor Angular, High Back Collar and 2 Studs on Back (part 35225) is a LEGO element. CollectORbuild's catalog records it in 6 sets, including Aaron's X-bow and Axl's Rolling Arsenal.