Keep your littlest rider on the path of two-wheeled freedom with the all-new Shuffle 2 helmet. Through an exclusive partnership with KTH Royal Institute of Technology (KTH) and Mips, we shared our helmet's CAD designs and studied the malleable skulls of young children with Finite Element Analysis (FEA). Because children's heads are softer and still growing, using low density foam - and more of it - was the outcome of this partnership.DATA DRIVEN INNOVATION: Coming out of our KTH and Mips partnership, the Shuffle 2 had increased the amount of low density foam inside by 18%, only growing the overall size of the helmet by 5%.COMFORT: The Shuffle 2 may have the latest and greatest technology inside, but that only matters when the helmet is worn properly. That's why Shuffle 2 features specific child oriented sizing and our SX headset fit system, to help it stay properly fitted and comfortable, whenever it is worn. The easy-to-use tri-fix web splitter makes getting a 'fuss-free' fit incredibly simple, all adding up to a helmet they'll beg to wear.UNLEASH THEIR IMAGINATION: On the outside, the Shuffle 2 comes in energetic colors sure to inspire fun and creativity from adventure-hungry kids. The included sticker pack offers a retro vibe with a modern twist with bright graphics and lettering for even more personalization. After all, getting our young riders excited enough to want to wear their helmet everyday is the number one goal. Features: 49-55 cm OSFM child size, approximately up to age 7.4th Dimension Cooling System to optimize ventilation.Clip-on visor included.Headset SX fit system with child oriented sizing that's designed for an easy and accurate fit.In-molded shell improves strength and reduces weight.Integrated rear reflector for increased visibility in low-light conditions.MIPS Essential Core.Standard buckle design.Stylish, youthful designs complement our bike graphics and colors.Tri-Fix web splitter for improved comfort and ease of strap adjustments.