Flow 2013 Rival Coiler (Black/Rasta) Snowboard Boots DOUBLE BARREL EVA comfort panels improve fit around the ankle. Flow comfort foam with a vented tongue to reduce moisture. Comfort top cuff and velcro positioning tabs to eliminate tongue drifting. A custom flex zone in the forefoot improves fit across the toes while an anti-microbial finish eliminates odor-causing bacteria. BOA The New BOA H3 design and updated functions are easier to use and ensure micro-adjustability with no pressure points. Gram for gram, BOA laces are stronger than tank