Brand new from the legendary boot-makers at Nordica, the Promachine takes the low weight and downhill power of the Speedmachine (100 mm last) and Sportmachine (102 mm last) and implements them into a lower-volume 98 mm last shoe. The boot features the Tri Force Shell Construction, which sheds weight, maintains downhill performance and ensures better wrapping of the foot. The Promachine also employs the brand’s Infrared Shell Customization technique and 3D Custom Cork liner, which, together, produce a snug, stiff, performance-oriented fit. If you have skinny dogs and seek a slender, stiff boot geared towards breaking the speed limit on every run, take a gander at the Promachine.