Vans Men's Infuse Sideline Snowboard Boot The Infuse Sideline blends Japanese-inspired design with the fluid feel of surf-influenced riding. Its asymmetrical flex pattern and oversized PleasureCuff™ create the mobility needed for smooth, expressive turns, while the mix of V3 comfort and a durable V2 outsole keeps things responsive across changing terrain. Built for riders who want power and finesse in the same boot, the Sideline delivers control that moves naturally from edge to edge. Details All-terrain boot optimized for all types of riding Flex rating: 5-9 Skill level: intermediate to advanced V3 UltraCush™ liner with FlashDry™ for warm, quick-dry comfort V3 PopCush™ footbed adds responsive cushioning and rebound V2 Waffle Pro outsole with All-Trac™ rubber for cold-weather traction BOA® Fit System with Vans Hybrid Custom Slide Guide for precise adjustment Waterproof zipper shroud with D-ring keeps the elements out PleasureCuff™ enhances mobility and top-of-boot comfort Waterproof, breathable valves regulate warmth and airflow Asymmetrical flex zone increases freedom of movement V2 harness creates a supportive, locked-in internal fit