Nidecker Boots Micron Boa black 2019/20 kids Specifications FlowFIT - a combination of Nidecker and Flow knowledge and experience with technologies like BOA guarantees the best fit boots with the perfect balance of comfort, support and control Boa M3 Closure System - popular fastening system 3D-Molded Liner - anatomically shaped 3D EVA foam insert, soft EVA insole, integrated lacing