Rome Snowboards Ace Snowboard Boots. The Ace is a youth boot designed to bridge the gap from MiniShred sizing to adult performance. This soft yet supportive boot is backed with our Rad F.I.T. Liner for a heat moldable fit. With the foolproof dialed fit of a single dial BOA system and TX3 Lacing for quick and easy adjustments, the Ace keeps the good times rolling. Sequence dial BOA. Rad F.I.T. Liner: Plush and supportive, this fully heat moldable liner features SkateCuff 3D, an expandable toe box, TriZone lining and Rad Foambeds for comfort. AceFlex outsole: One-piece rubber outsole for a softer flex with maximum traction. Imported.