The World's Strongest Golf Umbrellas. We tested The Challenger against every other umbrella in the industry... and we blew them away!  Features patented wind vent technology. Double flex-tech fiberglass rib . Rubber handle .62" arc  Nylon canopy with matching sleeve. Available in solid Black, Navy, Burgundy, Red, Charcoal, Silver, Black/White, Navy/White, Red/White, Royal/White, Hunter/White, Navy/Hunter, Hunter/Navy, Black/Khaki.