The Bontrager Ballista MIPS aero road cycling helmet is a wind-tunnel proven design with the added protection of MIPS. The Bontrager Ballista MIPS slices through the wind like no other helmet available, launching you into breakaways & finish line sprints. With superior venting from Bontrager’s unique internal channelling, this is an aero helmet you can use every day. As well as being fast the Ballista is designed to be safe with the addition of MIPS (Multi-directional Impact Protection System). MIPS was developed by brain surgeons & scientists to allow a small amount of movement in the helmet on impact, helping to reduce rotational forces on the brain caused by angled impacts to the head. If you are looking for a road cycling helmet that combines the best in aero performance & safety then the Bontrager Ballista is it. Features MIPS Brain Protection System Boa closure system lets riders easily secure & adjust helmet fit with one hand Front Center Channels distinct vent shape draws in significantly more air Internal, recessed channels move airflow over your head to keep you cool & dry In-mold composite skeleton increases helmet integrity & provides larger vent variations Ag ION anti-microbial pads wick moisture & naturally eliminate odors Easily-adjustable Lock Down dividers provide clean helmet strap management Crash Replacement guarantee provides a free helmet replacement if involved in a crash within the first year of ownership