Who says bike helmets can't be attractive The Bell Strut women's bike helmet is as good looking as it is safe and comfortable. Fusion In Mold construction bonds the helmets outer microshell to its EPS foam layer to provide a sturdier, more solid helmet. ErgoDial fit system allows for one handed fit adjustments: simply press the button and slide the dial to get firm, snug, and comfy stability. Removable snap in visor offers a simple yet effective solution to harsh light situations. Cam lock strap levers make strap adjustments super easy: just open the cam, find a comfortable position, and close the lever again. Ponytail compatibility and 15 extra large vents help keep you cooler and more comfortable. Universal sizing fits head circumferences from 21.25 24 in. 54 61 cm.