Devon Are Aegis Model K-1 Riding Helmet~ Size S/M 。Pre-owned black hard helmet. See photos for measurements and condition. Classic vintage 1970s English riding helmet designed for hunter/jumper and equestrian show events. Features a structured, smooth hard-shell protective dome, traditional built-in ventilation cap slits for airflow, and its original secure leather chin strap/harness system. Details: • Era: 1970s (Vintage / Retro) • Discipline: Hunter Jumper / English Riding Events • Shell: Smooth black hard-shell finish • Ventilation: Integrated crown ventilation holes • Harness: Traditional leather chin strap harness • Color: Classic Riding Black • Size Label: Not Stamped • Inner measurements: See Photos Condition: Pre-owned vintage riding wear condition. Shows honest cosmetic surface scuffing to the hard exterior shell from active arena use. The structural shell shape remains completely solid, the vents are clear, and the leather harness strap is fully intact. ⚠️ IMPORTANT SELLER NOTE: This is a vintage 1970s helmet. While it was manufactured as functional riding gear for show events, safety standards change over time. Please verify modern event rules and personal safety preferences before utilizing vintage safety equipment in active competition.