Like the Rev 85, the Rev 80 Pro features a metal-reinforced wood-core layup for high-speed calm and integrity, but its narrower waist and tighter sidecut radius give it additional quickness, short-turn versatility and more tenacious hard-snow grip. It's sold only as a system, with Head's 11-DIN PR plate/binding system. The REV series is a broad collection of frontside-oriented all-mountain skis ranging in width from 105 mm down to 70 mm. The signature technology throughout the series is 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. Head's Allride Rocker combines 80-percent camber for edge and rebound with 20 percent tip rocker for soft-snow flotation and shock absorption. Higher-end models in the family (80 mm and up) feature Head's 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). The fatter REV models are sold flat; narrower ones are sold as systems (with binding).