The Half Dome has long been a staple for climbers worldwide. With a shell profile that is optimized for a ponytail, you can spend less time fiddling with your hair and more time climbing. Plus, low profile, streamlined suspension and a one-handed dial combined with streamlined headlamp clips add comfort and simplicity. EPS impact foam and durable ABS shell Women&';s-specific fit Ponytail-friendly shell design Lightweight headlamp clips One-handed fit adjustment dial Easily adjustable chin strap Product Details Weight : 330 g (11.6 oz) Size Range : 50-58 cm (19.7-22.8 in)