The Salomon S/PRO Supra BOA 110 GW is engineered for advanced skiers who demand performance and comfort in every run. Its heat‑moldable polyurethane shell, enhanced by Custom Shell HD, hugs the foot for powerful energy transfer and a tailored fit. The BOA Fit System—paired with ExoWrap® construction—delivers an even, pressure‑free closure that can be dialed in on the go, while the Power Spine connects the cuff and shell for strong heel support, smooth rebound, and consistent forward flex.