Bell Women's Strut Sport Bicycle Helmet. Designed for female riders with universal women's sizing and ponytail compatibility, the Bell Women's Strut Sport Bicycle Helmet is perfect for casual all-around rides. Extended Fusion In-Mold Microshell combines superior durability with increased coverage for total protection. 15 vents promote airflow for head-cooling comfort. One-hand adjust ErgoDial fit system and easy-setting Cam-Lock levers provide a custom fit. Removable visor snaps on easily for better visibility in sun or rain.