Where the 105-mm wide Mya No. 10 specializes in powder performance, the No. 9 brings more versatility and an edgier performance better suited to all conditions. It's similar to the men's REV 98 - same waist (98 mm) and shape, different women's-specific graphic. Like the No. 10, it's targeted at strong, expert women, and is only sold flat (no binding). And like the 10, it's a Sandwich Cap Construction (wood-core laminate layup with shortened vertical sidewalls, for edge grip, topped by rounded cap-construction shoulders, for a touch of forgiveness). Head's Allride Rocker combines 80 percent camber for edge and rebound with 20 percent tip rocker for soft-snow flotation and shock absorption. All Mya women's models feature Head's ERA 3.0 design philosophy. The "3.0" refers to the fundamental triad of radius (ie. sidecut), rebound (ie. flex), and rocker. Head designs all ERA skis so that these three fundamentals work in harmony, specifically adding more width at the tip so that the introduction of tip rocker doesn't compromise turn initiation.