The Hyban 2.0 combines a robust ABS hard shell with the great airflow of a lightweight road helmet. Fitted with our height adjustable and pony-tail compatible Zoom Ace system every rider will find a perfect fit. ABS hard shell: Robust helmet made of EPS foam and injection moulded outer shell,Large, highly mounted and integrated LED taillight with 180° visibility,High visibility: Thanks to high-intensity reflectors,Bug mesh: Full protection from insects,Zoom Ace: Height adjustable retention system enclosing the whole head,XL Size Large helmet sizes available (62+ cm),Excellent ventilation with 5 air inlets and 8 air outlets,Ponytail compatibility,Removeable visor.