One K Defender Rose Gold Stripe Helmet

Medium Shell comes with a Medium Liner 

Large Shell comes with a Large Liner

To change the fit to a Small, you need to purchase a Medium Shell and a Small Liner.

To change the fit to an XL, you need to purchase a Large Shell and an XL Liner. 

Small & XL or spare liners, can be purchased here.

The Defender features: 

• A matte Polycarbonate and Advanced ABS Composite outer shell
• Injection molded shell design
• Washable, replaceable, quick-dry, moisture wicking and anti-microbial liner
• Stainless steel mesh
• Comfort padded harness with synthetic suede lining, hook & loop adjustment, and Fastex buckle
• Seven vents - two side, two front, one back, and two centre stripe vents

One K™ English Riding Helmets boast the perfect synergy between advanced technology and aesthetically pleasing design. With enough features to appeal to those seeking everything a helmet could possibly offer, wrapped in a package that traditionalists can appreciate, One K™ has the best of both worlds. 

ASTM F1163 (SEI marked) - approved to current 2019 Australian standards. 

The base shells for the Defender are Medium and Large.

- Use the Medium size helmet shell with a Small liner to change the fit to a Small.

- Use the Large size helmet shell with an XLarge liner to change the fit to an XLarge.

Please note, the Medium Shell is only compatible with Small & Medium Liners and the Large Shell is only compatible with Large & Extra Large Liners.

Additional liners (spare) can also be purchased here.

HELMETS SIZE CHART