Burton Zipline Boa Youth Snowboard Boots 2015 Color:White Gray Pink Construction In mold polycarbonate shell with standard Construction In mold polycarbonate shell with EPS liner Fit System ROC LOC sport MIPS Impact System MIPS equipped Visor Quick link removable Visor Ventilation 22 vents Sizing Universal fit sizing: 50 57 cm Features Hardshell with in mold hardbody lower wrap FLEX AND RESPONSE: 1:1 Firm Flex PowerUP Tongue and Step On™ Backstay COMFORT: Total Comfort Construction Burton's Zipline boot utilizes a softer flex and all around easy Boa closure for the next step in kid focused comfort and snow combat Model: Zipline