(click photos to enlarge) Home > Helmets > Simpson Helmets > Simpson Diamondback Helmet Aggressive and Mean. The Simpson Diamondback's futuristic design elements command attention with a unique diamond pattern crown design and contrasting vent screens in the Chin Air Ram Ducts. Standard Features Include: Lightweight Carbon, Kevlar and Fiberglass composite shell Unique Chin Bar and diamondpattern crown design Chin air ram ducts withdistinct contrasting vents Aerodynamic Counter Measures (A.C.M.) for increased stability Standard .125 clear Lexan shield opens with thumb tab Optional Smoked, Polarized and High Resol Amber shields available separately Adjustable tear off posts Exclusive impact absorbing liner with form fitting, fire-resistant lining Free nylon drawstring helmet bag Available in white or gloss black (additional $25) Snell SA2005 rated See size chart at bottom of page Helmet Size Chart  |  Helmet Guide  |  Snell Memorial Foundation Simpson Diamondback Helmet SIMP-DMNDRegular Price: $599.00Sale Price: Color/Size: SOLD OUT Helmet Bag: FREE Sizing               WARNING! - Motor racing is extremely hazardous, injury or death can occur. No warranty is made or implied regarding any product sold by Devo Tech, Inc. / SoloRacer.com to protect users from injury or death. The user assumes all risks. Please read the rest of our Legal Disclaimer before ordering. Our on-line store is up and running 24 hours a day, 7 days a week. We use Yahoo! Secure Servers for all transactions so you can shop with complete confidence. If you are uncomfortable purchasing online, email us for more ordering options. NORARacing |  RacingHelmetGuide.com | RacingSeatGuide.com | RacingTireGuide.com |  Corbeau USA ©Copyright 2002-2012 by Devo Tech, Inc.