Troxel (R) liberty schooling helmet ultralight, low profile design created for schooling and all-purpose riding. The liberty now features the GPS II soft-touch dial, permitting quick and precise helmet adjustment. Large vents provide superior ventilation for a cooler, more comfortable ride. Astm f1163-04a/sei certified & CE certified to European EN 1384 standards click on important helmet warning to the right features: matte duratec/gloss finish GPS II dial fit system mesh covered vents low profile flip-fold fit adjustment open cell foam air-channel technology ASTM/sie-certified 350ml Item specifications: