• Secret pop-lock to fit any U-Lock or chain lock. Backed by Anti-theft Guarantee. 
• Vegan leather straps.
• Magnetic buckle. German engineered.
• Dial fit system for adjustable helmet size.
• Top and rear vents for air flow. 

This helmet includes: 

Cloth Bag

Specifications:

Small: 21.25 - 22.5 in / 54-57 cm
Medium: 22.5 - 23.25 in /  57-59 cm
Large: 23.25 - 24.5 in / 59-62 cm