Zip Jr. MIPSDescription School, park, or neighborhood trails, kids and bikes go places. No matter where their wheels take them, the Smith Zip Jr. bike helmet delivers enhanced angle impact protection with MIPS in a lightweight design that kids want to wear. Our dial adjustable VaporFit gets the fit right every time. There's a low profile lining for extra comfort plus plenty of vents to keep the air flowing and kids cool. Just buckle 'em up and start pedaling.