EDELRID - Shield II Women's Softshell Climbing Helmet, Icemint/Snow, Small Lightweight In-Mold construction Fully adjustable chin strap with closure system positioned under the ear for greater comfort Wing-Fit system and rear adjustment dial Airflow system with large vents ensure a constant suppley of fresh air Sizing: 48-56cm (Size 1); 52-62cm (Size 2)