ABUS Moventor 2.0 MTB Helmet - High-Comfort Off-Road Bike Helmet - All-Mountain Helmet, UnisexMULTI SHELL IN MOLD: Manufacturing process that creates a durable and stable connection between the shock absorbing inner shell and impact resistant outer shell ZOOM ACE MTB: Adjustment system for mountain bike helmets thanks to the adjustment wheel, the helmet can be individually adjusted to the circumference of the head SPACE FOR A PONYTAIL: Adjustment system at the back of the head is height adjustable this allows space for a ponytail PRODUCT