Draw String Neck Dam

The Drawstring Neck Dam, 510-533, is the standard neck dam configuration on all SuperLite-17A/B & US Navy MK-21 Mod. O & Mod. I Helmets. The 1996 Model now has an angled neck chute, allowing the helmet to rest in a more comfortable position and lessening front end ride up. It also fits a wider variety of neck sizes due to its "trim to fit" design. There are no port number changes due to this alteration. Shipped standard on all SuperLite-17 A/B helmets.

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