The Northwave Tech Plus Shoe is a bit heavier than last year's Extreme Tech. But, you gain the venerable Speed Lace Winch closure system which ensures an even more perfect fit. And while the name 'Northwave' may not be immediately as recognizable in the ranks of Euro road shoes, its penchant for quality and fit place it on the top tier of cycling shoes. Northwave built the uppers with an ultralight microfiber designed in a single, seamless shell. This eliminates hotspots and chafing and reduces weight. To ensure a perfect fit, Northwave used BioMap Biomechanical Mapping analysis to design the Extreme Tech Plus. Athletes are tested extensively to help Northwave design products that work in perfect synergy with the body's systems. The carbon fiber soleplate is much lighter than other, less costly sole materials. It also allows Northwave to reduce sole thickness for direct power transfer from your foot to the pedal. Ventilation is taken care of by vents at the toe and on the sides of the shoes. The Extreme Air footbed allows air to move under your feet for complete circulation. The Extreme Air footbed is also antibacterial to minimize odors. The Northwave Extreme Tech Plus Shoes Men's are available in whole sizes 36. 0 to 39. 0 and 46. 0 to 48. 0. Half sizes are available from sizes 39. 5 to 45. 5. They come in three colorways: Whiteblack, Matte black, and Fluo orange.