Park & Diamond helmet: Ultra-portable, stylish and collapsible Gadget Current March 26, 2019 0Comments 2,541 Views The Park & Diamond helmet looks and feels like a baseball cap.Just as safe as a traditional helmet. It is light, very safe and easy to carry. Just roll it up in its custom carry case or easily store it in your backpack, messenger bag or handbag. Share with friends! Filed in: Health, Wearables