Giro Switchblade convertible mountain bike helmet. Chin bar is removable so can be used as a full-face when needed, or removed when not needed (or for climbs).
Size MEDIUM 53-59cm, safety orange + indigo blue colour. Awesome looking helmet. 2017 manufacture date. Never crashed.
Light and breathable for trail riding, but DH-certified. MIPS safety system. Adjustable retention dial in back.
Retails for $400+tx. Asking only $65 firm.