Rudy Project Sterling Helmet White Black Matte Cycling HelmetRudy Project renews its classic Sterling helmet that has given such good performance to many cyclists. This version achieves a cooler, lighter and more comfortable design. The colors in the Sterling range are certainly an eye-catcher. Rudy Project Sterling Helmet White Black Matte Cycling HelmetRudy Proyect's Sterling helmet is lightweight and comfortable.- 18 vents- Great ventilation Fastex System- Free Pad closure buckle.- Comfortable and interchangeable Bug Stop padding.- Filled with protective net Comfortable contour for the head.- Removable RSR7 AR adjustable retention system.- Adjustable head contour Visor - integrated and removable.Sizes:SM: 54-58cmL: 59-61cm