Bontrager Solstice MIPS Youth Bike Helmet is a great all-rounder helmet with MIPS technology (multi-directional impact protection system) providing ample protection whilst looking great & doesn’t break the bank. MIPS was developed by brain surgeons & scientists to look at reducing the impact on the head & brain from all angles. One-handed Headmaster fit system means that you can the adjust height & circumference Great ventilation makes. Removable helmet pads provide wicking. Built in removable visor allows for style & function. Features MIPS Brain Protection System Fidlock magnetic buckle fastens effortlessly for a quick, secure, kid-friendly fit The intuitive, one-handed Headmaster fit system adjusts height & circumference Built-in & removable visor options give you two choices for constant coverage Lock Down dividers make helmet strap management clean & easy to adjust Soft, comfortable, moisture-wicking & washable helmet pads Crash Replacement guarantee provides free helmet replacement if it is involved in a crash within the first year of ownership