DescriptionThe Scorpion EXO-R710 is another edition to their popular R-series line of helmets set out to reinvent the Scorpion name. Optimized weight, fit and comfort, the EXO-R710 is at home on the track, in the canyons, or during a daily commute.Features: Fiberglass/Aramid Matrix Shell - A proprietary blend of interlaced fiberglass and Aramid fibers EverClear Faceshield - Optically-clear shield with state-of-the art fog-free technology, anti-scratch hardened coating and 100% UV protection Aero-Tuned Ventilation - Four intake ports across the front of the helmet force cool air into the helmet interior while three exhaust vents maximize movement of hot air out of the helmet Advanced Dual-Density EPS - A multi-layer EPS provides efficient energy displacement in key areas including EPS lining throughout the entire chin bar Emergency Release System - Tabs located under the neck roll allow easy removal of the cheek pads by trained emergency medical personnel AirFit - Permits a rider to personalize helmet fit through air adjustable cheek pads KwikWick II - The second generation of Scorpion’s moisture-wicking lining material feels soft to the touch and incorporates anti-microbial and hypo-allergenic properties KwickFit - Allow easy on and off of the most common styles of eye glasses Elip-Tec Ratchet System - Scorpion’s ratchet system uses an elliptical motion that creates 7.6mm of travel which pulls the shield securely against the eyeport, ensuring a proper seal. The Ellip-Tec ratchet system allows for 100% tool-less shield changing in a matter of seconds. Rear spoiler 3 shell sizes Double D ring 5 year warranty SNELL 2015 Certified Sizing XS 6 5/8 20 7/8 - 21 1/4 53-54 SM 6 7/8 - 7 21 5/8 -22 55-56 MD 7 1/8 - 7 1/4 22 7/16 - 22 13/16 57-58 LG 7 3/8 - 7 1/2 23 1/8 - 23 5/8 59-60 XL 7 5/8 - 7 3/4 24 - 24 3/8 61-62 2XL 7 7/8 - 8 24 13/16 - 25 3/16 63-64 3XL 8 1/8 - 8 1/4 25 9/16 - 26 65-66