This structure has been maximized to channel water on modern wide skis. The powder structure is composed of multiple fine grooves with square edges to assist in adding moisture between your ski base and the snow where moisture is most often lacking with fresh, dry snow. This allows the ski the ability to slide more efficiently than it would without structure. This is the same structure as our Powder structure but is cranked up a notch. The Powder 3D structure includes 4 vertical grooves that help channel additional water and acts like siping on a tire to control moisture content and flow even greater than our standard Powder structure. Not many companies can provide 3D structure as it takes very sophisticated and expensive equipment to do so. All of our 3D structures are grinded into our bases on our Montana Crystal Race machine which was the first in North America and remains to be one of a select few in the country.