509 Launches Ken Block Legacy Helmet PR Newswire SPOKANE, Wash., Sept. 7, 2024 509, Ken Block's Family, and 43 Institute to Unveil Helmet at Hay Days SPOKANE, Wash. , Sept. 7, 2024 /PRNewswire/ -- 509, a leading powersports apparel brand, has partnered with the family of motorsports legend Ken Block and their Foundation set up in Ken's honor, 43 Institute (43i®), to launch the KB4EVER™ Altitude 2.0 Limited-Edition Helmet. A portion of the helmet's sales will be donated to 43i to help support...