With a lightweight, stylish, protective and comfortable one size fits all design, the Giro Fixture MIPS Helmet is a great value for money helmet. This is a versatile helmet that is at home on single-track, fireroads or just hitting the paths. Who's this item for: A great universal fit helmet intended for XC, Trail and All Mountain riders. Rotational liner: MIPS equipped to reduce rotational impact forces. Straps: Standard buckle strap Retention System: Giro's easy to use and comfortable ROC LOC SPORT retention system.Sizing: One size fits most sizing suits 54 - 61cm sized heads Ventilation: Excellent airflow with 18 large vents. Padding: Standard Velcro/clip padding. Pros: Stylish and great value for money helmet. Cons: One size fits most sizing can be pretty hit and miss. Especially if you're at either end of the 54 - 61cm sizing range.