Step On® Snowboard Boot. All-around performance with a responsive flex, the micro-adjustable fit of Sequence BOA® lacing, and the ease of Step On®. Made for those who like a responsive, powerful boot, the women's Burton Highshot Step On® Snowboard Boots give you total control of boot fit and tensioning to match its powerful flex. A Sequence BOA® Fit System lets you control the shell closure and tension around your foot with a single dial.. Add out-of-the-box comfort, and we're talking about a true step-on-and-go program for riders who like to rip.